151961334551 has 16 divisors (see below), whose sum is σ = 169773528960. Its totient is φ = 135051248640.

The previous prime is 151961334521. The next prime is 151961334557. The reversal of 151961334551 is 155433169151.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 151961334551 - 2³⁴ = 134781465367 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 (151961334557) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 437855 + ... + 704016.

It is an arithmetic number, because the mean of its divisors is an integer number (10610845560).

Almost surely, 2^151961334551 is an apocalyptic number.

151961334551 is a deficient number, since it is larger than the sum of its proper divisors (17812194409).

151961334551 is a wasteful number, since it uses less digits than its factorization.

151961334551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1142266.

The product of its digits is 243000, while the sum is 44.

The spelling of 151961334551 in words is "one hundred fifty-one billion, nine hundred sixty-one million, three hundred thirty-four thousand, five hundred fifty-one".