157337663777 has 4 divisors (see below), whose sum is σ = 179814472896. Its totient is φ = 134860854660.

The previous prime is 157337663773. The next prime is 157337663803. The reversal of 157337663777 is 777366733751.

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, and also an emirpimes, since its reverse is a distinct semiprime: 777366733751 = 37 ⋅21009911723.

It is not a de Polignac number, because 157337663777 - 2² = 157337663773 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (157337663771) 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, 11238404549 + ... + 11238404562.

It is an arithmetic number, because the mean of its divisors is an integer number (44953618224).

Almost surely, 2^157337663777 is an apocalyptic number.

It is an amenable number.

157337663777 is a deficient number, since it is larger than the sum of its proper divisors (22476809119).

157337663777 is an equidigital number, since it uses as much as digits as its factorization.

157337663777 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22476809118.

The product of its digits is 81682020, while the sum is 62.

The spelling of 157337663777 in words is "one hundred fifty-seven billion, three hundred thirty-seven million, six hundred sixty-three thousand, seven hundred seventy-seven".