72120574550153 has 4 divisors (see below), whose sum is σ = 73136357290368. Its totient is φ = 71104791809940.

The previous prime is 72120574550147. The next prime is 72120574550159. The reversal of 72120574550153 is 35105547502127.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is an interprime number because it is at equal distance from previous prime (72120574550147) and next prime (72120574550159).

It is a cyclic number.

It is not a de Polignac number, because 72120574550153 - 2⁴ = 72120574550137 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 72120574550098 and 72120574550107.

It is not an unprimeable number, because it can be changed into a prime (72120574550159) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 507891370001 + ... + 507891370142.

It is an arithmetic number, because the mean of its divisors is an integer number (18284089322592).

Almost surely, 2^{72120574550153} is an apocalyptic number.

It is an amenable number.

72120574550153 is a deficient number, since it is larger than the sum of its proper divisors (1015782740215).

72120574550153 is a wasteful number, since it uses less digits than its factorization.

72120574550153 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1015782740214.

The product of its (nonzero) digits is 1470000, while the sum is 47.

The spelling of 72120574550153 in words is "seventy-two trillion, one hundred twenty billion, five hundred seventy-four million, five hundred fifty thousand, one hundred fifty-three".