20846130616 has 32 divisors (see below), whose sum is σ = 39505418640. Its totient is φ = 10311694848.

The previous prime is 20846130589. The next prime is 20846130629. The reversal of 20846130616 is 61603164802.

It is a happy number.

It is a super-2 number, since 2×20846130616² (a number of 21 digits) contains 22 as substring.

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, 473410 + ... + 515566.

Almost surely, 2^20846130616 is an apocalyptic number.

It is an amenable number.

20846130616 is a deficient number, since it is larger than the sum of its proper divisors (18659288024).

20846130616 is a wasteful number, since it uses less digits than its factorization.

20846130616 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42823 (or 42819 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 37.

The spelling of 20846130616 in words is "twenty billion, eight hundred forty-six million, one hundred thirty thousand, six hundred sixteen".