72150432215 has 8 divisors (see below), whose sum is σ = 87437752128. Its totient is φ = 57148856800.

The previous prime is 72150432187. The next prime is 72150432217. The reversal of 72150432215 is 51223405127.

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

It is not a de Polignac number, because 72150432215 - 2¹⁶ = 72150366679 is a prime.

It is a super-2 number, since 2×72150432215² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (72150432217) 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, 71435567 + ... + 71436576.

It is an arithmetic number, because the mean of its divisors is an integer number (10929719016).

Almost surely, 2^72150432215 is an apocalyptic number.

72150432215 is a deficient number, since it is larger than the sum of its proper divisors (15287319913).

72150432215 is a wasteful number, since it uses less digits than its factorization.

72150432215 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 142872249.

The product of its (nonzero) digits is 16800, while the sum is 32.

The spelling of 72150432215 in words is "seventy-two billion, one hundred fifty million, four hundred thirty-two thousand, two hundred fifteen".