155503304253132 has 96 divisors (see below), whose sum is σ = 406164307820544. Its totient is φ = 45901036372800.

The previous prime is 155503304253113. The next prime is 155503304253217. The reversal of 155503304253132 is 231352403305551.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 58086708 + ... + 60704795.

It is an arithmetic number, because the mean of its divisors is an integer number (4230878206464).

Almost surely, 2^{155503304253132} is an apocalyptic number.

155503304253132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

155503304253132 is an abundant number, since it is smaller than the sum of its proper divisors (250661003567412).

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

155503304253132 is a wasteful number, since it uses less digits than its factorization.

155503304253132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 118791779 (or 118791777 counting only the distinct ones).

The product of its (nonzero) digits is 810000, while the sum is 42.

Adding to 155503304253132 its reverse (231352403305551), we get a palindrome (386855707558683).

The spelling of 155503304253132 in words is "one hundred fifty-five trillion, five hundred three billion, three hundred four million, two hundred fifty-three thousand, one hundred thirty-two".