61022160621 has 64 divisors (see below), whose sum is σ = 95916441600. Its totient is φ = 38295331200.

The previous prime is 61022160607. The next prime is 61022160623. The reversal of 61022160621 is 12606122016.

61022160621 is a `hidden beast` number, since 6 + 1 + 0 + 22 + 16 + 0 + 621 = 666.

It is not a de Polignac number, because 61022160621 - 2⁹ = 61022160109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61022160623) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 3685800 + ... + 3702318.

It is an arithmetic number, because the mean of its divisors is an integer number (1498694400).

Almost surely, 2^61022160621 is an apocalyptic number.

It is an amenable number.

61022160621 is a deficient number, since it is larger than the sum of its proper divisors (34894280979).

61022160621 is a wasteful number, since it uses less digits than its factorization.

61022160621 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16687 (or 16681 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 27.

Adding to 61022160621 its reverse (12606122016), we get a palindrome (73628282637).

The spelling of 61022160621 in words is "sixty-one billion, twenty-two million, one hundred sixty thousand, six hundred twenty-one".