155040010515 has 48 divisors (see below), whose sum is σ = 290164073472. Its totient is φ = 76127991552.

The previous prime is 155040010513. The next prime is 155040010577. The reversal of 155040010515 is 515010040551.

155040010515 is a `hidden beast` number, since 1 + 550 + 4 + 0 + 0 + 105 + 1 + 5 = 666.

It is not a de Polignac number, because 155040010515 - 2¹ = 155040010513 is a prime.

It is not an unprimeable number, because it can be changed into a prime (155040010513) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 121932 + ... + 570041.

It is an arithmetic number, because the mean of its divisors is an integer number (6045084864).

Almost surely, 2^155040010515 is an apocalyptic number.

155040010515 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

155040010515 is a deficient number, since it is larger than the sum of its proper divisors (135124062957).

155040010515 is a wasteful number, since it uses less digits than its factorization.

155040010515 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 692380 (or 692377 counting only the distinct ones).

The product of its (nonzero) digits is 2500, while the sum is 27.

The spelling of 155040010515 in words is "one hundred fifty-five billion, forty million, ten thousand, five hundred fifteen".