66372051 has 8 divisors (see below), whose sum is σ = 88541440. Its totient is φ = 44225352.

The previous prime is 66372041. The next prime is 66372101. The reversal of 66372051 is 15027366.

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

It is not a de Polignac number, because 66372051 - 2¹⁸ = 66109907 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (66372001) 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, 3090 + ... + 11928.

It is an arithmetic number, because the mean of its divisors is an integer number (11067680).

Almost surely, 2^66372051 is an apocalyptic number.

66372051 is a deficient number, since it is larger than the sum of its proper divisors (22169389).

66372051 is a wasteful number, since it uses less digits than its factorization.

66372051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11345.

The product of its (nonzero) digits is 7560, while the sum is 30.

The square root of 66372051 is about 8146.9043814200. The cubic root of 66372051 is about 404.8819469975.

The spelling of 66372051 in words is "sixty-six million, three hundred seventy-two thousand, fifty-one".