61515051160560 has 40 divisors (see below), whose sum is σ = 190696658598480. Its totient is φ = 16404013642752.

The previous prime is 61515051160531. The next prime is 61515051160567. The reversal of 61515051160560 is 6506115051516.

It is a tau number, because it is divible by the number of its divisors (40).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61515051160567) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 128156356345 + ... + 128156356824.

It is an arithmetic number, because the mean of its divisors is an integer number (4767416464962).

Almost surely, 2^{61515051160560} is an apocalyptic number.

61515051160560 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

61515051160560 is an abundant number, since it is smaller than the sum of its proper divisors (129181607437920).

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

61515051160560 is a wasteful number, since it uses less digits than its factorization.

61515051160560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256312713185 (or 256312713179 counting only the distinct ones).

The product of its (nonzero) digits is 135000, while the sum is 42.

The spelling of 61515051160560 in words is "sixty-one trillion, five hundred fifteen billion, fifty-one million, one hundred sixty thousand, five hundred sixty".