1885166123040 has 336 divisors, whose sum is σ = 6967838904768. Its totient is φ = 480853283328.

The previous prime is 1885166123023. The next prime is 1885166123041. The reversal of 1885166123040 is 403216615881.

1885166123040 is a `hidden beast` number, since 1 + 8 + 8 + 516 + 6 + 123 + 0 + 4 + 0 = 666.

It is a super-2 number, since 2×1885166123040² (a number of 25 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is not an unprimeable number, because it can be changed into a prime (1885166123041) by changing a digit.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 2331367 + ... + 3034073.

It is an arithmetic number, because the mean of its divisors is an integer number (20737615788).

Almost surely, 2^{1885166123040} is an apocalyptic number.

1885166123040 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 1885166123040, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (3483919452384).

1885166123040 is an abundant number, since it is smaller than the sum of its proper divisors (5082672781728).

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

1885166123040 is an equidigital number, since it uses as much as digits as its factorization.

1885166123040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 702763 (or 702740 counting only the distinct ones).

The product of its (nonzero) digits is 276480, while the sum is 45.

The spelling of 1885166123040 in words is "one trillion, eight hundred eighty-five billion, one hundred sixty-six million, one hundred twenty-three thousand, forty".