6201561651 has 8 divisors (see below), whose sum is σ = 8276867520. Its totient is φ = 4130315112.

The previous prime is 6201561647. The next prime is 6201561671. The reversal of 6201561651 is 1561651026.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 6201561651 - 2² = 6201561647 is a prime.

It is a super-2 number, since 2×6201561651² = 76918733822307691602, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (6201561671) 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, 1011265 + ... + 1017378.

It is an arithmetic number, because the mean of its divisors is an integer number (1034608440).

Almost surely, 2^6201561651 is an apocalyptic number.

6201561651 is a deficient number, since it is larger than the sum of its proper divisors (2075305869).

6201561651 is a wasteful number, since it uses less digits than its factorization.

6201561651 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2029665.

The product of its (nonzero) digits is 10800, while the sum is 33.

The square root of 6201561651 is about 78749.9946095236. The cubic root of 6201561651 is about 1837.2447786947.

The spelling of 6201561651 in words is "six billion, two hundred one million, five hundred sixty-one thousand, six hundred fifty-one".