155243700402 has 48 divisors (see below), whose sum is σ = 363286992960. Its totient is φ = 43323801696.

The previous prime is 155243700379. The next prime is 155243700467. The reversal of 155243700402 is 204007342551.

It is a super-3 number, since 3×155243700402³ (a number of 35 digits) contains 333 as substring.

It is an unprimeable number.

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 23 ways as a sum of consecutive naturals, for example, 921877 + ... + 1077192.

It is an arithmetic number, because the mean of its divisors is an integer number (7568479020).

Almost surely, 2^155243700402 is an apocalyptic number.

155243700402 is an abundant number, since it is smaller than the sum of its proper divisors (208043292558).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

155243700402 is a wasteful number, since it uses less digits than its factorization.

155243700402 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1999167 (or 1999124 counting only the distinct ones).

The product of its (nonzero) digits is 33600, while the sum is 33.

The spelling of 155243700402 in words is "one hundred fifty-five billion, two hundred forty-three million, seven hundred thousand, four hundred two".