157071665201 has 4 divisors (see below), whose sum is σ = 171350907504. Its totient is φ = 142792422900.

The previous prime is 157071665197. The next prime is 157071665203. The reversal of 157071665201 is 102566170751.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 157071665201 - 2² = 157071665197 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157071665203) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 7139621135 + ... + 7139621156.

It is an arithmetic number, because the mean of its divisors is an integer number (42837726876).

Almost surely, 2^157071665201 is an apocalyptic number.

157071665201 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

157071665201 is a deficient number, since it is larger than the sum of its proper divisors (14279242303).

157071665201 is a wasteful number, since it uses less digits than its factorization.

157071665201 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14279242302.

The product of its (nonzero) digits is 88200, while the sum is 41.

The spelling of 157071665201 in words is "one hundred fifty-seven billion, seventy-one million, six hundred sixty-five thousand, two hundred one".