155356342723 has 4 divisors (see below), whose sum is σ = 163532992360. Its totient is φ = 147179693088.

The previous prime is 155356342717. The next prime is 155356342727. The reversal of 155356342723 is 327243653551.

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 155356342723 - 2¹⁷ = 155356211651 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (155356342727) 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, 4088324790 + ... + 4088324827.

It is an arithmetic number, because the mean of its divisors is an integer number (40883248090).

Almost surely, 2^155356342723 is an apocalyptic number.

155356342723 is a deficient number, since it is larger than the sum of its proper divisors (8176649637).

155356342723 is an equidigital number, since it uses as much as digits as its factorization.

155356342723 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8176649636.

The product of its digits is 2268000, while the sum is 46.

The spelling of 155356342723 in words is "one hundred fifty-five billion, three hundred fifty-six million, three hundred forty-two thousand, seven hundred twenty-three".