61456654656037 has 4 divisors (see below), whose sum is σ = 61539368862240. Its totient is φ = 61373940449836.

The previous prime is 61456654655987. The next prime is 61456654656109. The reversal of 61456654656037 is 73065645665416.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-61456654656037 is a prime.

It is a super-2 number, since 2×61456654656037² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 61456654656037.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61456654656637) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 41357101987 + ... + 41357103472.

It is an arithmetic number, because the mean of its divisors is an integer number (15384842215560).

Almost surely, 2^{61456654656037} is an apocalyptic number.

It is an amenable number.

61456654656037 is a deficient number, since it is larger than the sum of its proper divisors (82714206203).

61456654656037 is an equidigital number, since it uses as much as digits as its factorization.

61456654656037 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 82714206202.

The product of its (nonzero) digits is 326592000, while the sum is 64.

The spelling of 61456654656037 in words is "sixty-one trillion, four hundred fifty-six billion, six hundred fifty-four million, six hundred fifty-six thousand, thirty-seven".