54656221551646 has 32 divisors (see below), whose sum is σ = 96385616863200. Its totient is φ = 22916404346880.

The previous prime is 54656221551623. The next prime is 54656221551649. The reversal of 54656221551646 is 64615512265645.

It is a super-2 number, since 2×54656221551646² (a number of 28 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (54656221551649) 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, 67413091 + ... + 68219038.

It is an arithmetic number, because the mean of its divisors is an integer number (3012050526975).

Almost surely, 2^{54656221551646} is an apocalyptic number.

54656221551646 is a deficient number, since it is larger than the sum of its proper divisors (41729395311554).

54656221551646 is a wasteful number, since it uses less digits than its factorization.

54656221551646 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 135633564.

The product of its digits is 51840000, while the sum is 58.

The spelling of 54656221551646 in words is "fifty-four trillion, six hundred fifty-six billion, two hundred twenty-one million, five hundred fifty-one thousand, six hundred forty-six".