20416261626 has 64 divisors (see below), whose sum is σ = 46462986240. Its totient is φ = 6641656560.

The previous prime is 20416261603. The next prime is 20416261643. The reversal of 20416261626 is 62616261402.

20416261626 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 6 + 26 + 1 + 626 = 666.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3552111 + ... + 3557853.

It is an arithmetic number, because the mean of its divisors is an integer number (725984160).

Almost surely, 2^20416261626 is an apocalyptic number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20416261626, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23231493120).

20416261626 is an abundant number, since it is smaller than the sum of its proper divisors (26046724614).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20416261626 is a wasteful number, since it uses less digits than its factorization.

20416261626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7328 (or 7322 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 36.

The spelling of 20416261626 in words is "twenty billion, four hundred sixteen million, two hundred sixty-one thousand, six hundred twenty-six".