156072451849 has 8 divisors (see below), whose sum is σ = 165485967840. Its totient is φ = 146778853536.

The previous prime is 156072451819. The next prime is 156072451859. The reversal of 156072451849 is 948154270651.

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 156072451849 - 2¹⁵ = 156072419081 is a prime.

It is a super-2 number, since 2×156072451849² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 156072451796 and 156072451805.

It is not an unprimeable number, because it can be changed into a prime (156072451819) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 29976739 + ... + 29981944.

It is an arithmetic number, because the mean of its divisors is an integer number (20685745980).

Almost surely, 2^156072451849 is an apocalyptic number.

156072451849 is a gapful number since it is divisible by the number (19) formed by its first and last digit.

It is an amenable number.

156072451849 is a deficient number, since it is larger than the sum of its proper divisors (9413515991).

156072451849 is a wasteful number, since it uses less digits than its factorization.

156072451849 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 59958839.

The product of its (nonzero) digits is 2419200, while the sum is 52.

The spelling of 156072451849 in words is "one hundred fifty-six billion, seventy-two million, four hundred fifty-one thousand, eight hundred forty-nine".