21146006046 has 16 divisors (see below), whose sum is σ = 46136740608. Its totient is φ = 6407880600.

The previous prime is 21146006039. The next prime is 21146006083. The reversal of 21146006046 is 64060064112.

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, 160196950 + ... + 160197081.

It is an arithmetic number, because the mean of its divisors is an integer number (2883546288).

Almost surely, 2^21146006046 is an apocalyptic number.

21146006046 is an abundant number, since it is smaller than the sum of its proper divisors (24990734562).

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

21146006046 is a wasteful number, since it uses less digits than its factorization.

21146006046 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 320394047.

The product of its (nonzero) digits is 6912, while the sum is 30.

The spelling of 21146006046 in words is "twenty-one billion, one hundred forty-six million, six thousand, forty-six".