61560160394 has 4 divisors (see below), whose sum is σ = 92340240594. Its totient is φ = 30780080196.

The previous prime is 61560160367. The next prime is 61560160397. The reversal of 61560160394 is 49306106516.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 60829809769 + 730350625 = 246637^2 + 27025^2 .

It is not an unprimeable number, because it can be changed into a prime (61560160397) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15390040097 + ... + 15390040100.

Almost surely, 2^61560160394 is an apocalyptic number.

61560160394 is a deficient number, since it is larger than the sum of its proper divisors (30780080200).

61560160394 is a wasteful number, since it uses less digits than its factorization.

61560160394 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30780080199.

The product of its (nonzero) digits is 116640, while the sum is 41.

The spelling of 61560160394 in words is "sixty-one billion, five hundred sixty million, one hundred sixty thousand, three hundred ninety-four".