72151002237961 has 8 divisors (see below), whose sum is σ = 80415977726880. Its totient is φ = 64332782180928.

The previous prime is 72151002237953. The next prime is 72151002237973. The reversal of 72151002237961 is 16973220015127.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 72151002237961 - 2³ = 72151002237953 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (72151002237901) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 111688857631 + ... + 111688858276.

It is an arithmetic number, because the mean of its divisors is an integer number (10051997215860).

Almost surely, 2^{72151002237961} is an apocalyptic number.

It is an amenable number.

72151002237961 is a deficient number, since it is larger than the sum of its proper divisors (8264975488919).

72151002237961 is a wasteful number, since it uses less digits than its factorization.

72151002237961 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223377715943.

The product of its (nonzero) digits is 317520, while the sum is 46.

The spelling of 72151002237961 in words is "seventy-two trillion, one hundred fifty-one billion, two million, two hundred thirty-seven thousand, nine hundred sixty-one".