155204664342 has 64 divisors (see below), whose sum is σ = 385980962304. Its totient is φ = 40511093760.

The previous prime is 155204664331. The next prime is 155204664343. The reversal of 155204664342 is 243466402551.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is a junction number, because it is equal to n+sod(n) for n = 155204664294 and 155204664303.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155204664343) 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 31 ways as a sum of consecutive naturals, for example, 1412284 + ... + 1518207.

It is an arithmetic number, because the mean of its divisors is an integer number (6030952536).

Almost surely, 2^155204664342 is an apocalyptic number.

155204664342 is an abundant number, since it is smaller than the sum of its proper divisors (230776297962).

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

155204664342 is a wasteful number, since it uses less digits than its factorization.

155204664342 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2930613.

The product of its (nonzero) digits is 691200, while the sum is 42.

The spelling of 155204664342 in words is "one hundred fifty-five billion, two hundred four million, six hundred sixty-four thousand, three hundred forty-two".