6465920154 has 16 divisors (see below), whose sum is σ = 12937309248. Its totient is φ = 2154395232.

The previous prime is 6465920141. The next prime is 6465920179. The reversal of 6465920154 is 4510295646.

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, 212422 + ... + 240945.

It is an arithmetic number, because the mean of its divisors is an integer number (808581828).

Almost surely, 2^6465920154 is an apocalyptic number.

6465920154 is an abundant number, since it is smaller than the sum of its proper divisors (6471389094).

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

6465920154 is a wasteful number, since it uses less digits than its factorization.

6465920154 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 455749.

The product of its (nonzero) digits is 259200, while the sum is 42.

The square root of 6465920154 is about 80410.9454862956. The cubic root of 6465920154 is about 1862.9882356740.

The spelling of 6465920154 in words is "six billion, four hundred sixty-five million, nine hundred twenty thousand, one hundred fifty-four".