99674721159552 has 864 divisors, whose sum is σ = 378573609960000. Its totient is φ = 25054338355200.

The previous prime is 99674721159499. The next prime is 99674721159553. The reversal of 99674721159552 is 25595112747699.

It is a happy number.

99674721159552 is a `hidden beast` number, since 9 + 9 + 6 + 7 + 4 + 7 + 2 + 11 + 59 + 552 = 666.

It is a Harshad number since it is a multiple of its sum of digits (72).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (99674721159553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 107 ways as a sum of consecutive naturals, for example, 211501074 + ... + 211971822.

Almost surely, 2^{99674721159552} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 99674721159552, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (189286804980000).

99674721159552 is an abundant number, since it is smaller than the sum of its proper divisors (278898888800448).

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

99674721159552 is a wasteful number, since it uses less digits than its factorization.

99674721159552 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 470836 (or 470803 counting only the distinct ones).

The product of its digits is 428652000, while the sum is 72.

The spelling of 99674721159552 in words is "ninety-nine trillion, six hundred seventy-four billion, seven hundred twenty-one million, one hundred fifty-nine thousand, five hundred fifty-two".