20610146748956 has 48 divisors (see below), whose sum is σ = 38357830969920. Its totient is φ = 9656134778880.

The previous prime is 20610146748899. The next prime is 20610146749043. The reversal of 20610146748956 is 65984764101602.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20610146748895 and 20610146748904.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 63571241 + ... + 63894623.

It is an arithmetic number, because the mean of its divisors is an integer number (799121478540).

Almost surely, 2^{20610146748956} is an apocalyptic number.

It is an amenable number.

20610146748956 is a deficient number, since it is larger than the sum of its proper divisors (17747684220964).

20610146748956 is a wasteful number, since it uses less digits than its factorization.

20610146748956 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 327534 (or 327532 counting only the distinct ones).

The product of its (nonzero) digits is 17418240, while the sum is 59.

The spelling of 20610146748956 in words is "twenty trillion, six hundred ten billion, one hundred forty-six million, seven hundred forty-eight thousand, nine hundred fifty-six".