1099132076025 has 81 divisors (see below), whose sum is σ = 2024384611431. Its totient is φ = 570058490880.

The previous prime is 1099132075999. The next prime is 1099132076047. The reversal of 1099132076025 is 5206702319901.

It is a happy number.

The square root of 1099132076025 is 1048395.

It is a perfect power (a square), and thus also a powerful number.

1099132076025 is a `hidden beast` number, since 1 + 0 + 9 + 9 + 1 + 32 + 0 + 7 + 602 + 5 = 666.

It can be written as a sum of positive squares in 13 ways, for example, as 243936222201 + 855195853824 = 493899^2 + 924768^2 .

It is not a de Polignac number, because 1099132076025 - 2²⁵ = 1099098521593 is a prime.

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

It is an unprimeable number.

It is a polite number, since it can be written in 80 ways as a sum of consecutive naturals, for example, 581858281 + ... + 581860169.

Almost surely, 2^{1099132076025} is an apocalyptic number.

1099132076025 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1099132076025 is the 1048395-th square number.

1099132076025 is the 524198-th centered octagonal number.

It is an amenable number.

1099132076025 is a deficient number, since it is larger than the sum of its proper divisors (925252535406).

1099132076025 is an frugal number, since it uses more digits than its factorization.

1099132076025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3868 (or 1934 counting only the distinct ones).

The product of its (nonzero) digits is 204120, while the sum is 45.

The spelling of 1099132076025 in words is "one trillion, ninety-nine billion, one hundred thirty-two million, seventy-six thousand, twenty-five".