55156660562 has 4 divisors (see below), whose sum is σ = 82734990846. Its totient is φ = 27578330280.

The previous prime is 55156660561. The next prime is 55156660567. The reversal of 55156660562 is 26506665155.

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., 44011424521 + 11145236041 = 209789^2 + 105571^2 .

It is not an unprimeable number, because it can be changed into a prime (55156660561) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 13789165139 + ... + 13789165142.

Almost surely, 2^55156660562 is an apocalyptic number.

55156660562 is a deficient number, since it is larger than the sum of its proper divisors (27578330284).

55156660562 is a wasteful number, since it uses less digits than its factorization.

55156660562 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27578330283.

The product of its (nonzero) digits is 1620000, while the sum is 47.

The spelling of 55156660562 in words is "fifty-five billion, one hundred fifty-six million, six hundred sixty thousand, five hundred sixty-two".