61002515055015 has 96 divisors (see below), whose sum is σ = 110020345972992. Its totient is φ = 32426013312000.

The previous prime is 61002515055007. The next prime is 61002515055023. The reversal of 61002515055015 is 51055051520016.

61002515055015 is a `hidden beast` number, since 6 + 1 + 0 + 0 + 2 + 51 + 50 + 550 + 1 + 5 = 666.

It is an interprime number because it is at equal distance from previous prime (61002515055007) and next prime (61002515055023).

It is not a de Polignac number, because 61002515055015 - 2³ = 61002515055007 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 1351654000 + ... + 1351699130.

It is an arithmetic number, because the mean of its divisors is an integer number (1146045270552).

Almost surely, 2^{61002515055015} is an apocalyptic number.

61002515055015 is a deficient number, since it is larger than the sum of its proper divisors (49017830917977).

61002515055015 is a wasteful number, since it uses less digits than its factorization.

61002515055015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 48843 (or 48831 counting only the distinct ones).

The product of its (nonzero) digits is 37500, while the sum is 36.

The spelling of 61002515055015 in words is "sixty-one trillion, two billion, five hundred fifteen million, fifty-five thousand, fifteen".