23220638101690 has 64 divisors (see below), whose sum is σ = 43229540809728. Its totient is φ = 8971127424000.

The previous prime is 23220638101679. The next prime is 23220638101777. The reversal of 23220638101690 is 9610183602232.

It is a super-2 number, since 2×23220638101690² (a number of 28 digits) contains 22 as substring.

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, 431768082 + ... + 431821858.

It is an arithmetic number, because the mean of its divisors is an integer number (675461575152).

Almost surely, 2^{23220638101690} is an apocalyptic number.

23220638101690 is a deficient number, since it is larger than the sum of its proper divisors (20008902708038).

23220638101690 is a wasteful number, since it uses less digits than its factorization.

23220638101690 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 56503.

The product of its (nonzero) digits is 186624, while the sum is 43.

The spelling of 23220638101690 in words is "twenty-three trillion, two hundred twenty billion, six hundred thirty-eight million, one hundred one thousand, six hundred ninety".