155692448057 has 4 divisors (see below), whose sum is σ = 155771122320. Its totient is φ = 155613773796.

The previous prime is 155692448039. The next prime is 155692448081. The reversal of 155692448057 is 750844296551.

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, and also an emirpimes, since its reverse is a distinct semiprime: 750844296551 = 5557 ⋅135116843.

It is a cyclic number.

It is not a de Polignac number, because 155692448057 - 2¹² = 155692443961 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 155692447993 and 155692448011.

It is not an unprimeable number, because it can be changed into a prime (155692448017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 39334163 + ... + 39338120.

It is an arithmetic number, because the mean of its divisors is an integer number (38942780580).

Almost surely, 2^155692448057 is an apocalyptic number.

It is an amenable number.

155692448057 is a deficient number, since it is larger than the sum of its proper divisors (78674263).

155692448057 is an equidigital number, since it uses as much as digits as its factorization.

155692448057 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78674262.

The product of its (nonzero) digits is 12096000, while the sum is 56.

The spelling of 155692448057 in words is "one hundred fifty-five billion, six hundred ninety-two million, four hundred forty-eight thousand, fifty-seven".