2665700928 has 140 divisors (see below), whose sum is σ = 8620518192. Its totient is φ = 807770880.

The previous prime is 2665700911. The next prime is 2665700971. The reversal of 2665700928 is 8290075662.

2665700928 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a super-2 number, since 2×2665700928² = 14211922875080122368, which contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 33651 + ... + 80397.

Almost surely, 2^2665700928 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2665700928, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4310259096).

2665700928 is an abundant number, since it is smaller than the sum of its proper divisors (5954817264).

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

2665700928 is a wasteful number, since it uses less digits than its factorization.

2665700928 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46782 (or 46763 counting only the distinct ones).

The product of its (nonzero) digits is 362880, while the sum is 45.

The square root of 2665700928 is about 51630.4263782510. The cubic root of 2665700928 is about 1386.5551270408. Note that the first 3 decimals are identical.

The spelling of 2665700928 in words is "two billion, six hundred sixty-five million, seven hundred thousand, nine hundred twenty-eight".