150621861438720 has 864 divisors, whose sum is σ = 605350779022080. Its totient is φ = 33864774451200.

The previous prime is 150621861438703. The next prime is 150621861438803. The reversal of 150621861438720 is 27834168126051.

It is a happy number.

150621861438720 is a `hidden beast` number, since 1 + 5 + 0 + 6 + 2 + 18 + 614 + 3 + 8 + 7 + 2 + 0 = 666.

It is a super-4 number, since 4×150621861438720⁴ (a number of 58 digits) contains 4444 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 3787398996 + ... + 3787438764.

It is an arithmetic number, because the mean of its divisors is an integer number (700637475720).

Almost surely, 2^{150621861438720} is an apocalyptic number.

150621861438720 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 150621861438720, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (302675389511040).

150621861438720 is an abundant number, since it is smaller than the sum of its proper divisors (454728917583360).

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

150621861438720 is a wasteful number, since it uses less digits than its factorization.

150621861438720 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40571 (or 40554 counting only the distinct ones).

The product of its (nonzero) digits is 3870720, while the sum is 54.

The spelling of 150621861438720 in words is "one hundred fifty trillion, six hundred twenty-one billion, eight hundred sixty-one million, four hundred thirty-eight thousand, seven hundred twenty".