6155061551 has 4 divisors (see below), whose sum is σ = 6156045000. Its totient is φ = 6154078104.

The previous prime is 6155061541. The next prime is 6155061553. The reversal of 6155061551 is 1551605516.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-6155061551 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 (6155061553) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 482276 + ... + 494873.

It is an arithmetic number, because the mean of its divisors is an integer number (1539011250).

Almost surely, 2^6155061551 is an apocalyptic number.

6155061551 is a deficient number, since it is larger than the sum of its proper divisors (983449).

6155061551 is an equidigital number, since it uses as much as digits as its factorization.

6155061551 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 983448.

The product of its (nonzero) digits is 22500, while the sum is 35.

The square root of 6155061551 is about 78454.2003400710. The cubic root of 6155061551 is about 1832.6412883945.

The spelling of 6155061551 in words is "six billion, one hundred fifty-five million, sixty-one thousand, five hundred fifty-one".