651166061 has 8 divisors (see below), whose sum is σ = 801435264. Its totient is φ = 515208240.

The previous prime is 651166057. The next prime is 651166073. The reversal of 651166061 is 160661156.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 651166061 - 2² = 651166057 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (651166051) 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, 3577745 + ... + 3577926.

It is an arithmetic number, because the mean of its divisors is an integer number (100179408).

Almost surely, 2^651166061 is an apocalyptic number.

It is an amenable number.

651166061 is a deficient number, since it is larger than the sum of its proper divisors (150269203).

651166061 is a wasteful number, since it uses less digits than its factorization.

651166061 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7155691.

The product of its (nonzero) digits is 6480, while the sum is 32.

The square root of 651166061 is about 25517.9556587122. The cubic root of 651166061 is about 866.7567895596.

The spelling of 651166061 in words is "six hundred fifty-one million, one hundred sixty-six thousand, sixty-one".