155952155699 has 4 divisors (see below), whose sum is σ = 160167078864. Its totient is φ = 151737232536.

The previous prime is 155952155603. The next prime is 155952155729. The reversal of 155952155699 is 996551259551.

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 155952155699 - 2¹² = 155952151603 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155952155599) 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, 2107461527 + ... + 2107461600.

It is an arithmetic number, because the mean of its divisors is an integer number (40041769716).

Almost surely, 2^155952155699 is an apocalyptic number.

155952155699 is a deficient number, since it is larger than the sum of its proper divisors (4214923165).

155952155699 is an equidigital number, since it uses as much as digits as its factorization.

155952155699 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4214923164.

The product of its digits is 27337500, while the sum is 62.

The spelling of 155952155699 in words is "one hundred fifty-five billion, nine hundred fifty-two million, one hundred fifty-five thousand, six hundred ninety-nine".