61070658507 has 20 divisors (see below), whose sum is σ = 91235940840. Its totient is φ = 40710678624.

The previous prime is 61070658491. The next prime is 61070658541. The reversal of 61070658507 is 70585607016.

61070658507 is a `hidden beast` number, since 6 + 10 + 70 + 65 + 8 + 507 = 666.

It is not a de Polignac number, because 61070658507 - 2⁴ = 61070658491 is a prime.

It is a super-2 number, since 2×61070658507² (a number of 22 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (61070618507) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 1640719 + ... + 1677527.

It is an arithmetic number, because the mean of its divisors is an integer number (4561797042).

Almost surely, 2^61070658507 is an apocalyptic number.

61070658507 is a deficient number, since it is larger than the sum of its proper divisors (30165282333).

61070658507 is a wasteful number, since it uses less digits than its factorization.

61070658507 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 57304 (or 57295 counting only the distinct ones).

The product of its (nonzero) digits is 352800, while the sum is 45.

The spelling of 61070658507 in words is "sixty-one billion, seventy million, six hundred fifty-eight thousand, five hundred seven".