155390069208 has 96 divisors (see below), whose sum is σ = 437416645680. Its totient is φ = 45939379200.

The previous prime is 155390069173. The next prime is 155390069209. The reversal of 155390069208 is 802960093551.

It is a happy number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (155390069209) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 533485 + ... + 771612.

Almost surely, 2^155390069208 is an apocalyptic number.

It is an amenable number.

155390069208 is an abundant number, since it is smaller than the sum of its proper divisors (282026576472).

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

155390069208 is a wasteful number, since it uses less digits than its factorization.

155390069208 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1305169 (or 1305154 counting only the distinct ones).

The product of its (nonzero) digits is 583200, while the sum is 48.

The spelling of 155390069208 in words is "one hundred fifty-five billion, three hundred ninety million, sixty-nine thousand, two hundred eight".