6155562920 has 64 divisors (see below), whose sum is σ = 14943655440. Its totient is φ = 2268518400.

The previous prime is 6155562863. The next prime is 6155562949. The reversal of 6155562920 is 292655516.

It can be written as a sum of positive squares in 8 ways, for example, as 84971524 + 6070591396 = 9218^2 + 77914^2 .

It is a hoax number, since the sum of its digits (41) coincides with the sum of the digits of its distinct prime factors.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 270380 + ... + 292260.

Almost surely, 2^6155562920 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 6155562920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (7471827720).

6155562920 is an abundant number, since it is smaller than the sum of its proper divisors (8788092520).

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

6155562920 is a wasteful number, since it uses less digits than its factorization.

6155562920 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 22446 (or 22442 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 41.

The square root of 6155562920 is about 78457.3955723742. The cubic root of 6155562920 is about 1832.6910471486.

The spelling of 6155562920 in words is "six billion, one hundred fifty-five million, five hundred sixty-two thousand, nine hundred twenty".