20345351344 has 40 divisors (see below), whose sum is σ = 39531914240. Its totient is φ = 10143620928.

The previous prime is 20345351311. The next prime is 20345351363. The reversal of 20345351344 is 44315354302.

It is a happy 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, 12982849 + ... + 12984415.

It is an arithmetic number, because the mean of its divisors is an integer number (988297856).

Almost surely, 2^20345351344 is an apocalyptic number.

It is an amenable number.

20345351344 is a deficient number, since it is larger than the sum of its proper divisors (19186562896).

20345351344 is a wasteful number, since it uses less digits than its factorization.

20345351344 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3377 (or 3371 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 34.

The spelling of 20345351344 in words is "twenty billion, three hundred forty-five million, three hundred fifty-one thousand, three hundred forty-four".