61662650164407 has 8 divisors (see below), whose sum is σ = 91352074317680. Its totient is φ = 41108433442920.

The previous prime is 61662650164397. The next prime is 61662650164417. The reversal of 61662650164407 is 70446105626616.

61662650164407 is a `hidden beast` number, since 6 + 1 + 6 + 6 + 26 + 50 + 164 + 407 = 666.

It is an interprime number because it is at equal distance from previous prime (61662650164397) and next prime (61662650164417).

It is not a de Polignac number, because 61662650164407 - 2⁴ = 61662650164391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61662650164417) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1141900928944 + ... + 1141900928997.

It is an arithmetic number, because the mean of its divisors is an integer number (11419009289710).

Almost surely, 2^{61662650164407} is an apocalyptic number.

61662650164407 is a deficient number, since it is larger than the sum of its proper divisors (29689424153273).

61662650164407 is a wasteful number, since it uses less digits than its factorization.

61662650164407 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2283801857950 (or 2283801857944 counting only the distinct ones).

The product of its (nonzero) digits is 8709120, while the sum is 54.

The spelling of 61662650164407 in words is "sixty-one trillion, six hundred sixty-two billion, six hundred fifty million, one hundred sixty-four thousand, four hundred seven".