157648161999 has 16 divisors (see below), whose sum is σ = 222341190912. Its totient is φ = 99152146368.

The previous prime is 157648161941. The next prime is 157648162037. The reversal of 157648161999 is 999161846751.

It is not a de Polignac number, because 157648161999 - 2⁹ = 157648161487 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (157648161499) 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, 15643977 + ... + 15654050.

It is an arithmetic number, because the mean of its divisors is an integer number (13896324432).

Almost surely, 2^157648161999 is an apocalyptic number.

157648161999 is a deficient number, since it is larger than the sum of its proper divisors (64693028913).

157648161999 is a wasteful number, since it uses less digits than its factorization.

157648161999 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 31298126.

The product of its digits is 29393280, while the sum is 66.

The spelling of 157648161999 in words is "one hundred fifty-seven billion, six hundred forty-eight million, one hundred sixty-one thousand, nine hundred ninety-nine".