2660526990 has 96 divisors (see below), whose sum is σ = 7806520800. Its totient is φ = 622728960.

The previous prime is 2660526931. The next prime is 2660526991. The reversal of 2660526990 is 996250662.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2660526991) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 17625 + ... + 75044.

It is an arithmetic number, because the mean of its divisors is an integer number (81317925).

Almost surely, 2^2660526990 is an apocalyptic number.

2660526990 is an abundant number, since it is smaller than the sum of its proper divisors (5145993810).

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

2660526990 is a wasteful number, since it uses less digits than its factorization.

2660526990 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 92722 (or 92719 counting only the distinct ones).

The product of its (nonzero) digits is 349920, while the sum is 45.

The square root of 2660526990 is about 51580.2965288103. The cubic root of 2660526990 is about 1385.6574773740.

The spelling of 2660526990 in words is "two billion, six hundred sixty million, five hundred twenty-six thousand, nine hundred ninety".