6551651620155 has 16 divisors (see below), whose sum is σ = 10484718073344. Its totient is φ = 3493522370400.

The previous prime is 6551651620127. The next prime is 6551651620301. The reversal of 6551651620155 is 5510261561556.

It is not a de Polignac number, because 6551651620155 - 2¹³ = 6551651611963 is a prime.

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, 43160899 + ... + 43312428.

It is an arithmetic number, because the mean of its divisors is an integer number (655294879584).

Almost surely, 2^{6551651620155} is an apocalyptic number.

6551651620155 is a deficient number, since it is larger than the sum of its proper divisors (3933066453189).

6551651620155 is a wasteful number, since it uses less digits than its factorization.

6551651620155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 86478386.

The product of its (nonzero) digits is 1350000, while the sum is 48.

The spelling of 6551651620155 in words is "six trillion, five hundred fifty-one billion, six hundred fifty-one million, six hundred twenty thousand, one hundred fifty-five".