155571473140 has 48 divisors (see below), whose sum is σ = 330316260624. Its totient is φ = 61540761600.

The previous prime is 155571473129. The next prime is 155571473173. The reversal of 155571473140 is 41374175551.

It can be written as a sum of positive squares in 8 ways, for example, as 23719696144 + 131851776996 = 154012^2 + 363114^2 .

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, 2610880 + ... + 2669800.

It is an arithmetic number, because the mean of its divisors is an integer number (6881588763).

Almost surely, 2^155571473140 is an apocalyptic number.

155571473140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155571473140 is an abundant number, since it is smaller than the sum of its proper divisors (174744787484).

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

155571473140 is a wasteful number, since it uses less digits than its factorization.

155571473140 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60388 (or 60386 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 43.

The spelling of 155571473140 in words is "one hundred fifty-five billion, five hundred seventy-one million, four hundred seventy-three thousand, one hundred forty".