6161621530 has 32 divisors (see below), whose sum is σ = 11894947200. Its totient is φ = 2290871232.

The previous prime is 6161621527. The next prime is 6161621533. The reversal of 6161621530 is 351261616.

It is an interprime number because it is at equal distance from previous prime (6161621527) and next prime (6161621533).

It is a junction number, because it is equal to n+sod(n) for n = 6161621492 and 6161621501.

It is not an unprimeable number, because it can be changed into a prime (6161621533) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 295870 + ... + 316009.

It is an arithmetic number, because the mean of its divisors is an integer number (371717100).

Almost surely, 2^6161621530 is an apocalyptic number.

6161621530 is a deficient number, since it is larger than the sum of its proper divisors (5733325670).

6161621530 is a wasteful number, since it uses less digits than its factorization.

6161621530 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 611958.

The product of its (nonzero) digits is 6480, while the sum is 31.

The square root of 6161621530 is about 78495.9969043008. The cubic root of 6161621530 is about 1833.2921250976.

The spelling of 6161621530 in words is "six billion, one hundred sixty-one million, six hundred twenty-one thousand, five hundred thirty".