155032040330 has 16 divisors (see below), whose sum is σ = 293744918880. Its totient is φ = 58748983632.

The previous prime is 155032040299. The next prime is 155032040353. The reversal of 155032040330 is 33040230551.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 155032040330.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 407978864 + ... + 407979243.

It is an arithmetic number, because the mean of its divisors is an integer number (18359057430).

Almost surely, 2^155032040330 is an apocalyptic number.

155032040330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

155032040330 is a deficient number, since it is larger than the sum of its proper divisors (138712878550).

155032040330 is a wasteful number, since it uses less digits than its factorization.

155032040330 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 815958133.

The product of its (nonzero) digits is 5400, while the sum is 26.

Adding to 155032040330 its reverse (33040230551), we get a palindrome (188072270881).

The spelling of 155032040330 in words is "one hundred fifty-five billion, thirty-two million, forty thousand, three hundred thirty".