20340554612 has 24 divisors (see below), whose sum is σ = 40689632256. Its totient is φ = 8715554208.

The previous prime is 20340554593. The next prime is 20340554623. The reversal of 20340554612 is 21645504302.

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, 64493 + ... + 211755.

It is an arithmetic number, because the mean of its divisors is an integer number (1695401344).

Almost surely, 2^20340554612 is an apocalyptic number.

It is an amenable number.

20340554612 is an abundant number, since it is smaller than the sum of its proper divisors (20349077644).

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

20340554612 is a wasteful number, since it uses less digits than its factorization.

20340554612 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152207 (or 152205 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 32.

The spelling of 20340554612 in words is "twenty billion, three hundred forty million, five hundred fifty-four thousand, six hundred twelve".