1554160161940 has 192 divisors, whose sum is σ = 3593399040000. Its totient is φ = 562587379200.

The previous prime is 1554160161887. The next prime is 1554160161971. The reversal of 1554160161940 is 491610614551.

It is a happy number.

It is a super-2 number, since 2×1554160161940² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 191843890 + ... + 191851990.

It is an arithmetic number, because the mean of its divisors is an integer number (18715620000).

Almost surely, 2^{1554160161940} is an apocalyptic number.

1554160161940 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 1554160161940, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1796699520000).

1554160161940 is an abundant number, since it is smaller than the sum of its proper divisors (2039238878060).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1554160161940 is a wasteful number, since it uses less digits than its factorization.

1554160161940 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8430 (or 8428 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 43.

It can be divided in two parts, 1554160 and 161940, that added together give a square (1716100 = 1310²).

The spelling of 1554160161940 in words is "one trillion, five hundred fifty-four billion, one hundred sixty million, one hundred sixty-one thousand, nine hundred forty".