62645136221 has 16 divisors (see below), whose sum is σ = 66504670848. Its totient is φ = 58805222400.

The previous prime is 62645136199. The next prime is 62645136247. The reversal of 62645136221 is 12263154626.

It is a cyclic number.

It is not a de Polignac number, because 62645136221 - 2⁶ = 62645136157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (62645130221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 11343941 + ... + 11349461.

It is an arithmetic number, because the mean of its divisors is an integer number (4156541928).

Almost surely, 2^62645136221 is an apocalyptic number.

It is an amenable number.

62645136221 is a deficient number, since it is larger than the sum of its proper divisors (3859534627).

62645136221 is a wasteful number, since it uses less digits than its factorization.

62645136221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7172.

The product of its digits is 103680, while the sum is 38.

The spelling of 62645136221 in words is "sixty-two billion, six hundred forty-five million, one hundred thirty-six thousand, two hundred twenty-one".