1557100044080 has 240 divisors, whose sum is σ = 4602891038976. Its totient is φ = 486250168320.

The previous prime is 1557100044061. The next prime is 1557100044107. The reversal of 1557100044080 is 804400017551.

It is a Harshad number since it is a multiple of its sum of digits (35).

It is a self number, because there is not a number n which added to its sum of digits gives 1557100044080.

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 47 ways as a sum of consecutive naturals, for example, 1688972 + ... + 2442708.

Almost surely, 2^{1557100044080} is an apocalyptic number.

1557100044080 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 1557100044080, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2301445519488).

1557100044080 is an abundant number, since it is smaller than the sum of its proper divisors (3045790994896).

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

1557100044080 is a wasteful number, since it uses less digits than its factorization.

1557100044080 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 753812 (or 753799 counting only the distinct ones).

The product of its (nonzero) digits is 22400, while the sum is 35.

The spelling of 1557100044080 in words is "one trillion, five hundred fifty-seven billion, one hundred million, forty-four thousand, eighty".