155287841020 has 48 divisors (see below), whose sum is σ = 359356646880. Its totient is φ = 56003625216.

The previous prime is 155287840991. The next prime is 155287841081. The reversal of 155287841020 is 20148782551.

It is a super-2 number, since 2×155287841020² (a number of 23 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 polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6933715 + ... + 6956074.

It is an arithmetic number, because the mean of its divisors is an integer number (7486596810).

Almost surely, 2^155287841020 is an apocalyptic number.

155287841020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155287841020 is an abundant number, since it is smaller than the sum of its proper divisors (204068805860).

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

155287841020 is a wasteful number, since it uses less digits than its factorization.

155287841020 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13889854 (or 13889852 counting only the distinct ones).

The product of its (nonzero) digits is 179200, while the sum is 43.

The spelling of 155287841020 in words is "one hundred fifty-five billion, two hundred eighty-seven million, eight hundred forty-one thousand, twenty".