20622699452 has 24 divisors (see below), whose sum is σ = 36189723024. Its totient is φ = 10282808192.

The previous prime is 20622699437. The next prime is 20622699469. The reversal of 20622699452 is 25499622602.

It is a happy number.

It is a super-2 number, since 2×20622699452² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20622699397 and 20622699406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 4624808 + ... + 4629264.

It is an arithmetic number, because the mean of its divisors is an integer number (1507905126).

Almost surely, 2^20622699452 is an apocalyptic number.

It is an amenable number.

20622699452 is a deficient number, since it is larger than the sum of its proper divisors (15567023572).

20622699452 is a wasteful number, since it uses less digits than its factorization.

20622699452 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7405 (or 7403 counting only the distinct ones).

The product of its (nonzero) digits is 933120, while the sum is 47.

The spelling of 20622699452 in words is "twenty billion, six hundred twenty-two million, six hundred ninety-nine thousand, four hundred fifty-two".