20366516346 has 16 divisors (see below), whose sum is σ = 44436035808. Its totient is φ = 6171671600.

The previous prime is 20366516333. The next prime is 20366516363. The reversal of 20366516346 is 64361566302.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 20366516298 and 20366516307.

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, 154291725 + ... + 154291856.

It is an arithmetic number, because the mean of its divisors is an integer number (2777252238).

Almost surely, 2^20366516346 is an apocalyptic number.

20366516346 is an abundant number, since it is smaller than the sum of its proper divisors (24069519462).

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

20366516346 is a wasteful number, since it uses less digits than its factorization.

20366516346 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 308583597.

The product of its (nonzero) digits is 466560, while the sum is 42.

The spelling of 20366516346 in words is "twenty billion, three hundred sixty-six million, five hundred sixteen thousand, three hundred forty-six".