1622111621552 has 20 divisors (see below), whose sum is σ = 3142898267976. Its totient is φ = 811041100800.

The previous prime is 1622111621521. The next prime is 1622111621657. The reversal of 1622111621552 is 2551261112261.

It is a super-2 number, since 2×1622111621552² (a number of 25 digits) contains 22 as substring.

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, 19427 + ... + 1801277.

Almost surely, 2^{1622111621552} is an apocalyptic number.

It is an amenable number.

1622111621552 is a deficient number, since it is larger than the sum of its proper divisors (1520786646424).

1622111621552 is a wasteful number, since it uses less digits than its factorization.

1622111621552 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1838756 (or 1838750 counting only the distinct ones).

The product of its digits is 14400, while the sum is 35.

The spelling of 1622111621552 in words is "one trillion, six hundred twenty-two billion, one hundred eleven million, six hundred twenty-one thousand, five hundred fifty-two".