66761151 has 8 divisors (see below), whose sum is σ = 89296944. Its totient is φ = 44366400.

The previous prime is 66761143. The next prime is 66761153. The reversal of 66761151 is 15116766.

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

It is not a de Polignac number, because 66761151 - 2³ = 66761143 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (66761153) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 34150 + ... + 36051.

It is an arithmetic number, because the mean of its divisors is an integer number (11162118).

Almost surely, 2^66761151 is an apocalyptic number.

66761151 is a deficient number, since it is larger than the sum of its proper divisors (22535793).

66761151 is a wasteful number, since it uses less digits than its factorization.

66761151 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 70521.

The product of its digits is 7560, while the sum is 33.

The square root of 66761151 is about 8170.7497208029. The cubic root of 66761151 is about 405.6716002137.

The spelling of 66761151 in words is "sixty-six million, seven hundred sixty-one thousand, one hundred fifty-one".