155011064540 has 24 divisors (see below), whose sum is σ = 326885267520. Its totient is φ = 61744991168.

The previous prime is 155011064513. The next prime is 155011064557. The reversal of 155011064540 is 45460110551.

It is a junction number, because it is equal to n+sod(n) for n = 155011064497 and 155011064506.

It is a congruent number.

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, 16209767 + ... + 16219326.

It is an arithmetic number, because the mean of its divisors is an integer number (13620219480).

Almost surely, 2^155011064540 is an apocalyptic number.

155011064540 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

155011064540 is an abundant number, since it is smaller than the sum of its proper divisors (171874202980).

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

155011064540 is a wasteful number, since it uses less digits than its factorization.

155011064540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32429341 (or 32429339 counting only the distinct ones).

The product of its (nonzero) digits is 12000, while the sum is 32.

The spelling of 155011064540 in words is "one hundred fifty-five billion, eleven million, sixty-four thousand, five hundred forty".