221647652614552 has 16 divisors (see below), whose sum is σ = 425725674229800. Its totient is φ = 108120806153280.

The previous prime is 221647652614541. The next prime is 221647652614573. The reversal of 221647652614552 is 255416256746122.

221647652614552 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×221647652614552² (a number of 29 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 337877518902 + ... + 337877519557.

Almost surely, 2^{221647652614552} is an apocalyptic number.

It is an amenable number.

221647652614552 is a deficient number, since it is larger than the sum of its proper divisors (204078021615248).

221647652614552 is a wasteful number, since it uses less digits than its factorization.

221647652614552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 675755038506 (or 675755038502 counting only the distinct ones).

The product of its digits is 48384000, while the sum is 58.

The spelling of 221647652614552 in words is "two hundred twenty-one trillion, six hundred forty-seven billion, six hundred fifty-two million, six hundred fourteen thousand, five hundred fifty-two".