151722074991 has 16 divisors (see below), whose sum is σ = 207732169568. Its totient is φ = 98464204800.

The previous prime is 151722074983. The next prime is 151722075041. The reversal of 151722074991 is 199470227151.

It is not a de Polignac number, because 151722074991 - 2³ = 151722074983 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 151722074991.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (151722074971) 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, 4255870 + ... + 4291371.

It is an arithmetic number, because the mean of its divisors is an integer number (12983260598).

Almost surely, 2^151722074991 is an apocalyptic number.

151722074991 is a deficient number, since it is larger than the sum of its proper divisors (56010094577).

151722074991 is an equidigital number, since it uses as much as digits as its factorization.

151722074991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8547402.

The product of its (nonzero) digits is 317520, while the sum is 48.

The spelling of 151722074991 in words is "one hundred fifty-one billion, seven hundred twenty-two million, seventy-four thousand, nine hundred ninety-one".