11662157601 has 16 divisors (see below), whose sum is σ = 17285425920. Its totient is φ = 7771101840.

The previous prime is 11662157599. The next prime is 11662157603. The reversal of 11662157601 is 10675126611.

It is a happy number.

11662157601 is a `hidden beast` number, since 1 + 1 + 66 + 21 + 576 + 0 + 1 = 666.

It is an interprime number because it is at equal distance from previous prime (11662157599) and next prime (11662157603).

It is not a de Polignac number, because 11662157601 - 2¹ = 11662157599 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11662157603) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 43065 + ... + 158678.

It is an arithmetic number, because the mean of its divisors is an integer number (1080339120).

Almost surely, 2^11662157601 is an apocalyptic number.

It is an amenable number.

11662157601 is a deficient number, since it is larger than the sum of its proper divisors (5623268319).

11662157601 is a wasteful number, since it uses less digits than its factorization.

11662157601 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 203893 (or 203887 counting only the distinct ones).

The product of its (nonzero) digits is 15120, while the sum is 36.

The spelling of 11662157601 in words is "eleven billion, six hundred sixty-two million, one hundred fifty-seven thousand, six hundred one".