155725851960 has 192 divisors, whose sum is σ = 578713075200. Its totient is φ = 35575849728.

The previous prime is 155725851947. The next prime is 155725851973. The reversal of 155725851960 is 69158527551.

155725851960 is a `hidden beast` number, since 1 + 5 + 5 + 72 + 58 + 519 + 6 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (155725851947) and next prime (155725851973).

It is a junction number, because it is equal to n+sod(n) for n = 155725851897 and 155725851906.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 5123127 + ... + 5153433.

It is an arithmetic number, because the mean of its divisors is an integer number (3014130600).

Almost surely, 2^155725851960 is an apocalyptic number.

155725851960 is a gapful number since it is divisible by the number (10) 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 155725851960, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (289356537600).

155725851960 is an abundant number, since it is smaller than the sum of its proper divisors (422987223240).

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

155725851960 is a wasteful number, since it uses less digits than its factorization.

155725851960 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32370 (or 32363 counting only the distinct ones).

The product of its (nonzero) digits is 3780000, while the sum is 54.

The spelling of 155725851960 in words is "one hundred fifty-five billion, seven hundred twenty-five million, eight hundred fifty-one thousand, nine hundred sixty".