156796641 has 20 divisors (see below), whose sum is σ = 234572052. Its totient is φ = 104377248.

The previous prime is 156796621. The next prime is 156796663. The reversal of 156796641 is 146697651.

It can be written as a sum of positive squares in 2 ways, for example, as 32251041 + 124545600 = 5679^2 + 11160^2 .

It is not a de Polignac number, because 156796641 - 2²³ = 148408033 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (156796621) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 89611 + ... + 91343.

Almost surely, 2^156796641 is an apocalyptic number.

It is an amenable number.

156796641 is a deficient number, since it is larger than the sum of its proper divisors (77775411).

156796641 is a wasteful number, since it uses less digits than its factorization.

156796641 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2862 (or 2853 counting only the distinct ones).

The product of its digits is 272160, while the sum is 45.

The square root of 156796641 is about 12521.8465491316. The cubic root of 156796641 is about 539.2360493604.

The spelling of 156796641 in words is "one hundred fifty-six million, seven hundred ninety-six thousand, six hundred forty-one".