1157694064 has 20 divisors (see below), whose sum is σ = 2243692456. Its totient is φ = 578676672.

The previous prime is 1157694053. The next prime is 1157694071. The reversal of 1157694064 is 4604967511.

It is a self number, because there is not a number n which added to its sum of digits gives 1157694064.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 59362 + ... + 76414.

Almost surely, 2^1157694064 is an apocalyptic number.

It is an amenable number.

1157694064 is a deficient number, since it is larger than the sum of its proper divisors (1085998392).

1157694064 is a wasteful number, since it uses less digits than its factorization.

1157694064 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 21304 (or 21298 counting only the distinct ones).

The product of its (nonzero) digits is 181440, while the sum is 43.

The square root of 1157694064 is about 34024.9035854622. The cubic root of 1157694064 is about 1050.0208806127.

The spelling of 1157694064 in words is "one billion, one hundred fifty-seven million, six hundred ninety-four thousand, sixty-four".