61690567508315 has 16 divisors (see below), whose sum is σ = 75426615034848. Its totient is φ = 48420526791936.

The previous prime is 61690567508309. The next prime is 61690567508389. The reversal of 61690567508315 is 51380576509616.

61690567508315 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 61690567508315 - 2¹⁰ = 61690567507291 is a prime.

It is a super-2 number, since 2×61690567508315² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 15687599 + ... + 19221911.

It is an arithmetic number, because the mean of its divisors is an integer number (4714163439678).

Almost surely, 2^{61690567508315} is an apocalyptic number.

61690567508315 is a deficient number, since it is larger than the sum of its proper divisors (13736047526533).

61690567508315 is a wasteful number, since it uses less digits than its factorization.

61690567508315 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3600238.

The product of its (nonzero) digits is 40824000, while the sum is 62.

The spelling of 61690567508315 in words is "sixty-one trillion, six hundred ninety billion, five hundred sixty-seven million, five hundred eight thousand, three hundred fifteen".