6150621520 has 20 divisors (see below), whose sum is σ = 14300195220. Its totient is φ = 2460248576.

The previous prime is 6150621469. The next prime is 6150621553. The reversal of 6150621520 is 251260516.

It can be written as a sum of positive squares in 2 ways, for example, as 4480428096 + 1670193424 = 66936^2 + 40868^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a super-2 number, since 2×6150621520² = 75660290164574220800, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 38441305 + ... + 38441464.

It is an arithmetic number, because the mean of its divisors is an integer number (715009761).

Almost surely, 2^6150621520 is an apocalyptic number.

It is an amenable number.

6150621520 is an abundant number, since it is smaller than the sum of its proper divisors (8149573700).

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

6150621520 is a wasteful number, since it uses less digits than its factorization.

6150621520 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 76882782 (or 76882776 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 28.

The square root of 6150621520 is about 78425.8982734658. The cubic root of 6150621520 is about 1832.2005161173.

The spelling of 6150621520 in words is "six billion, one hundred fifty million, six hundred twenty-one thousand, five hundred twenty".