61318415256501 has 32 divisors (see below), whose sum is σ = 92427640381440. Its totient is φ = 35898235243200.

The previous prime is 61318415256493. The next prime is 61318415256521. The reversal of 61318415256501 is 10565251481316.

It is not a de Polignac number, because 61318415256501 - 2³ = 61318415256493 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61318415256521) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 429744705 + ... + 429887366.

It is an arithmetic number, because the mean of its divisors is an integer number (2888363761920).

Almost surely, 2^{61318415256501} is an apocalyptic number.

It is an amenable number.

61318415256501 is a deficient number, since it is larger than the sum of its proper divisors (31109225124939).

61318415256501 is a wasteful number, since it uses less digits than its factorization.

61318415256501 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 859632177.

The product of its (nonzero) digits is 864000, while the sum is 48.

The spelling of 61318415256501 in words is "sixty-one trillion, three hundred eighteen billion, four hundred fifteen million, two hundred fifty-six thousand, five hundred one".