61670488407616 has 28 divisors (see below), whose sum is σ = 133502591383920. Its totient is φ = 28032040184960.

The previous prime is 61670488407613. The next prime is 61670488407629.

It is a happy number.

61670488407616 is nontrivially palindromic in base 10.

61670488407616 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a Smith number, since the sum of its digits (64) coincides with the sum of the digits of its prime factors.

It is a Harshad number since it is a multiple of its sum of digits (64).

It is not an unprimeable number, because it can be changed into a prime (61670488407613) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 43800062086 + ... + 43800063493.

Almost surely, 2^{61670488407616} is an apocalyptic number.

It is an amenable number.

61670488407616 is an abundant number, since it is smaller than the sum of its proper divisors (71832102976304).

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

61670488407616 is a wasteful number, since it uses less digits than its factorization.

61670488407616 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 87600125602 (or 87600125592 counting only the distinct ones).

The product of its (nonzero) digits is 65028096, while the sum is 64.

The spelling of 61670488407616 in words is "sixty-one trillion, six hundred seventy billion, four hundred eighty-eight million, four hundred seven thousand, six hundred sixteen".