154537068816 has 240 divisors, whose sum is σ = 501689889792. Its totient is φ = 44014924800.

The previous prime is 154537068767. The next prime is 154537068859. The reversal of 154537068816 is 618860735451.

It is a happy number.

154537068816 is a `hidden beast` number, since 1 + 545 + 3 + 7 + 0 + 6 + 88 + 16 = 666.

It is a super-2 number, since 2×154537068816² (a number of 23 digits) contains 22 as substring.

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, 1276846 + ... + 1392626.

Almost surely, 2^154537068816 is an apocalyptic number.

154537068816 is a gapful number since it is divisible by the number (16) 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 154537068816, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (250844944896).

154537068816 is an abundant number, since it is smaller than the sum of its proper divisors (347152820976).

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

154537068816 is a wasteful number, since it uses less digits than its factorization.

154537068816 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 115862 (or 115853 counting only the distinct ones).

The product of its (nonzero) digits is 4838400, while the sum is 54.

The spelling of 154537068816 in words is "one hundred fifty-four billion, five hundred thirty-seven million, sixty-eight thousand, eight hundred sixteen".