155126909952 has 396 divisors, whose sum is σ = 540357005136. Its totient is φ = 41982935040.

The previous prime is 155126909941. The next prime is 155126909963. The reversal of 155126909952 is 259909621551.

155126909952 is a `hidden beast` number, since 15 + 512 + 69 + 0 + 9 + 9 + 52 = 666.

It is an interprime number because it is at equal distance from previous prime (155126909941) and next prime (155126909963).

It is an unprimeable number.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 23285502 + ... + 23292162.

Almost surely, 2^155126909952 is an apocalyptic number.

155126909952 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 155126909952, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (270178502568).

155126909952 is an abundant number, since it is smaller than the sum of its proper divisors (385230095184).

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

155126909952 is a wasteful number, since it uses less digits than its factorization.

155126909952 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6732 (or 6692 counting only the distinct ones).

The product of its (nonzero) digits is 2187000, while the sum is 54.

The spelling of 155126909952 in words is "one hundred fifty-five billion, one hundred twenty-six million, nine hundred nine thousand, nine hundred fifty-two".