120565250151551 has 4 divisors (see below), whose sum is σ = 124722672570600. Its totient is φ = 116407827732504.

The previous prime is 120565250151461. The next prime is 120565250151553. The reversal of 120565250151551 is 155151052565021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120565250151551 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120565250151553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2078711209481 + ... + 2078711209538.

It is an arithmetic number, because the mean of its divisors is an integer number (31180668142650).

Almost surely, 2^{120565250151551} is an apocalyptic number.

120565250151551 is a deficient number, since it is larger than the sum of its proper divisors (4157422419049).

120565250151551 is an equidigital number, since it uses as much as digits as its factorization.

120565250151551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4157422419048.

The product of its (nonzero) digits is 375000, while the sum is 44.

The spelling of 120565250151551 in words is "one hundred twenty trillion, five hundred sixty-five billion, two hundred fifty million, one hundred fifty-one thousand, five hundred fifty-one".