154306326640 has 40 divisors (see below), whose sum is σ = 370335189888. Its totient is φ = 59731480320.

The previous prime is 154306326617. The next prime is 154306326649. The reversal of 154306326640 is 46623603451.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (40).

It is a super-2 number, since 2×154306326640² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (40).

It is a junction number, because it is equal to n+sod(n) for n = 154306326593 and 154306326602.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (154306326649) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31107667 + ... + 31112626.

Almost surely, 2^154306326640 is an apocalyptic number.

154306326640 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

154306326640 is an abundant number, since it is smaller than the sum of its proper divisors (216028863248).

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

154306326640 is a wasteful number, since it uses less digits than its factorization.

154306326640 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62220337 (or 62220331 counting only the distinct ones).

The product of its (nonzero) digits is 311040, while the sum is 40.

The spelling of 154306326640 in words is "one hundred fifty-four billion, three hundred six million, three hundred twenty-six thousand, six hundred forty".