156020150551 has 4 divisors (see below), whose sum is σ = 156025346472. Its totient is φ = 156014954632.

The previous prime is 156020150497. The next prime is 156020150563. The reversal of 156020150551 is 155051020651.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 156020150551 - 2¹⁷ = 156020019479 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 (156020150051) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2552656 + ... + 2613061.

It is an arithmetic number, because the mean of its divisors is an integer number (39006336618).

Almost surely, 2^156020150551 is an apocalyptic number.

156020150551 is a deficient number, since it is larger than the sum of its proper divisors (5195921).

156020150551 is an equidigital number, since it uses as much as digits as its factorization.

156020150551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5195920.

The product of its (nonzero) digits is 7500, while the sum is 31.

The spelling of 156020150551 in words is "one hundred fifty-six billion, twenty million, one hundred fifty thousand, five hundred fifty-one".