109651160388025 has 27 divisors (see below), whose sum is σ = 136224303446223. Its totient is φ = 87555521365200.

The previous prime is 109651160388013. The next prime is 109651160388037. The reversal of 109651160388025 is 520883061156901.

The square root of 109651160388025 is 10471445.

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

It is an interprime number because it is at equal distance from previous prime (109651160388013) and next prime (109651160388037).

It can be written as a sum of positive squares in only one way, i.e., 39474417739689 + 70176742648336 = 6282867^2 + 8377156^2 .

It is a de Polignac number, because none of the positive numbers 2^k-109651160388025 is a prime.

It is a Duffinian number.

It is an unprimeable number.

It is a polite number, since it can be written in 26 ways as a sum of consecutive naturals, for example, 33037407316 + ... + 33037410634.

Almost surely, 2^{109651160388025} is an apocalyptic number.

109651160388025 is the 10471445-th square number.

109651160388025 is the 5235723-rd centered octagonal number.

It is an amenable number.

109651160388025 is a deficient number, since it is larger than the sum of its proper divisors (26573143058198).

109651160388025 is an frugal number, since it uses more digits than its factorization.

109651160388025 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7910 (or 3955 counting only the distinct ones).

The product of its (nonzero) digits is 3110400, while the sum is 55.

The spelling of 109651160388025 in words is "one hundred nine trillion, six hundred fifty-one billion, one hundred sixty million, three hundred eighty-eight thousand, twenty-five".