6261151655 has 48 divisors (see below), whose sum is σ = 8851211712. Its totient is φ = 4237516800.

The previous prime is 6261151651. The next prime is 6261151727. The reversal of 6261151655 is 5561511626.

It is a happy number.

It is not a de Polignac number, because 6261151655 - 2² = 6261151651 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (6261151651) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 508775 + ... + 520935.

It is an arithmetic number, because the mean of its divisors is an integer number (184400244).

Almost surely, 2^6261151655 is an apocalyptic number.

6261151655 is a deficient number, since it is larger than the sum of its proper divisors (2590060057).

6261151655 is a wasteful number, since it uses less digits than its factorization.

6261151655 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12248 (or 12237 counting only the distinct ones).

The product of its digits is 54000, while the sum is 38.

The square root of 6261151655 is about 79127.4393304876. The cubic root of 6261151655 is about 1843.1106463369.

The spelling of 6261151655 in words is "six billion, two hundred sixty-one million, one hundred fifty-one thousand, six hundred fifty-five".