153997420944500 has 96 divisors (see below), whose sum is σ = 388696412482560. Its totient is φ = 52205867155200.

The previous prime is 153997420944431. The next prime is 153997420944509. The reversal of 153997420944500 is 5449024799351.

It is a happy number.

It is a super-3 number, since 3×153997420944500³ (a number of 44 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (153997420944509) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 246875372 + ... + 247498371.

It is an arithmetic number, because the mean of its divisors is an integer number (4048920963360).

Almost surely, 2^{153997420944500} is an apocalyptic number.

153997420944500 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

153997420944500 is an abundant number, since it is smaller than the sum of its proper divisors (234698991538060).

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

153997420944500 is a wasteful number, since it uses less digits than its factorization.

153997420944500 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 494373858 (or 494373846 counting only the distinct ones).

The product of its (nonzero) digits is 48988800, while the sum is 62.

The spelling of 153997420944500 in words is "one hundred fifty-three trillion, nine hundred ninety-seven billion, four hundred twenty million, nine hundred forty-four thousand, five hundred".