90666510 has 48 divisors (see below), whose sum is σ = 239189328. Its totient is φ = 21978880.

The previous prime is 90666509. The next prime is 90666523. The reversal of 90666510 is 1566609.

It is a Harshad number since it is a multiple of its sum of digits (33).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 8859 + ... + 16118.

It is an arithmetic number, because the mean of its divisors is an integer number (4983111).

Almost surely, 2^90666510 is an apocalyptic number.

90666510 is an abundant number, since it is smaller than the sum of its proper divisors (148522818).

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

90666510 is a wasteful number, since it uses less digits than its factorization.

90666510 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25009 (or 24998 counting only the distinct ones).

The product of its (nonzero) digits is 9720, while the sum is 33.

The square root of 90666510 is about 9521.8963447414. The cubic root of 90666510 is about 449.2440146310.

It can be divided in two parts, 9066 and 6510, that added together give a triangular number (15576 = T₁₇₆).

The spelling of 90666510 in words is "ninety million, six hundred sixty-six thousand, five hundred ten".