18950515466 has 16 divisors (see below), whose sum is σ = 29374839648. Its totient is φ = 9163266000.

The previous prime is 18950515433. The next prime is 18950515471. The reversal of 18950515466 is 66451505981.

It is a happy number.

It is a Curzon 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, 1082180 + ... + 1099551.

It is an arithmetic number, because the mean of its divisors is an integer number (1835927478).

Almost surely, 2^18950515466 is an apocalyptic number.

18950515466 is a deficient number, since it is larger than the sum of its proper divisors (10424324182).

18950515466 is a wasteful number, since it uses less digits than its factorization.

18950515466 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2181877.

The product of its (nonzero) digits is 1296000, while the sum is 50.

The spelling of 18950515466 in words is "eighteen billion, nine hundred fifty million, five hundred fifteen thousand, four hundred sixty-six".