155840103852 has 24 divisors (see below), whose sum is σ = 363779952816. Its totient is φ = 51924837888.

The previous prime is 155840103841. The next prime is 155840103919. The reversal of 155840103852 is 258301048551.

It is a super-2 number, since 2×155840103852² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2703213 + ... + 2760260.

It is an arithmetic number, because the mean of its divisors is an integer number (15157498034).

Almost surely, 2^155840103852 is an apocalyptic number.

155840103852 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155840103852 is an abundant number, since it is smaller than the sum of its proper divisors (207939848964).

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

155840103852 is a wasteful number, since it uses less digits than its factorization.

155840103852 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5465857 (or 5465855 counting only the distinct ones).

The product of its (nonzero) digits is 192000, while the sum is 42.

The spelling of 155840103852 in words is "one hundred fifty-five billion, eight hundred forty million, one hundred three thousand, eight hundred fifty-two".