660101156 has 36 divisors (see below), whose sum is σ = 1364603184. Its totient is φ = 276962400.

The previous prime is 660101153. The next prime is 660101227. The reversal of 660101156 is 651101066.

It is a Harshad number since it is a multiple of its sum of digits (26).

It is not an unprimeable number, because it can be changed into a prime (660101153) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36950 + ... + 51821.

It is an arithmetic number, because the mean of its divisors is an integer number (37905644).

Almost surely, 2^660101156 is an apocalyptic number.

It is an amenable number.

660101156 is an abundant number, since it is smaller than the sum of its proper divisors (704502028).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

660101156 is a wasteful number, since it uses less digits than its factorization.

660101156 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 88812 (or 88797 counting only the distinct ones).

The product of its (nonzero) digits is 1080, while the sum is 26.

The square root of 660101156 is about 25692.4338278801. The cubic root of 660101156 is about 870.7032478342.

The spelling of 660101156 in words is "six hundred sixty million, one hundred one thousand, one hundred fifty-six".