155947948800 has 648 divisors, whose sum is σ = 624803510016. Its totient is φ = 34090721280.

The previous prime is 155947948781. The next prime is 155947948813. The reversal of 155947948800 is 8849749551.

It is a Harshad number since it is a multiple of its sum of digits (60).

It is an unprimeable number.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 21634797 + ... + 21642003.

Almost surely, 2^155947948800 is an apocalyptic number.

155947948800 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 155947948800, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (312401755008).

155947948800 is an abundant number, since it is smaller than the sum of its proper divisors (468855561216).

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

155947948800 is a wasteful number, since it uses less digits than its factorization.

155947948800 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7273 (or 7247 counting only the distinct ones).

The product of its (nonzero) digits is 14515200, while the sum is 60.

The spelling of 155947948800 in words is "one hundred fifty-five billion, nine hundred forty-seven million, nine hundred forty-eight thousand, eight hundred".