660157001 has 8 divisors (see below), whose sum is σ = 754704384. Its totient is φ = 565669440.

The previous prime is 660156989. The next prime is 660157007. The reversal of 660157001 is 100751066.

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

It is not a de Polignac number, because 660157001 - 2¹⁸ = 659894857 is a prime.

It is not an unprimeable number, because it can be changed into a prime (660157007) 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, 11921 + ... + 38241.

It is an arithmetic number, because the mean of its divisors is an integer number (94338048).

Almost surely, 2^660157001 is an apocalyptic number.

It is an amenable number.

660157001 is a deficient number, since it is larger than the sum of its proper divisors (94547383).

660157001 is a wasteful number, since it uses less digits than its factorization.

660157001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29911.

The product of its (nonzero) digits is 1260, while the sum is 26.

The square root of 660157001 is about 25693.5206034518. The cubic root of 660157001 is about 870.7278011678.

The spelling of 660157001 in words is "six hundred sixty million, one hundred fifty-seven thousand, one".