636061151 has 8 divisors (see below), whose sum is σ = 694358784. Its totient is φ = 577842520.

The previous prime is 636061099. The next prime is 636061177. The reversal of 636061151 is 151160636.

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 636061151 - 2²² = 631866847 is a prime.

It is a super-2 number, since 2×636061151² = 809147575622889602, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (636061051) 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, 2231 + ... + 35736.

It is an arithmetic number, because the mean of its divisors is an integer number (86794848).

Almost surely, 2^636061151 is an apocalyptic number.

636061151 is a deficient number, since it is larger than the sum of its proper divisors (58297633).

636061151 is a wasteful number, since it uses less digits than its factorization.

636061151 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 39501.

The product of its (nonzero) digits is 3240, while the sum is 29.

The square root of 636061151 is about 25220.2527941335. The cubic root of 636061151 is about 860.0023215189.

The spelling of 636061151 in words is "six hundred thirty-six million, sixty-one thousand, one hundred fifty-one".