5551520212155 has 64 divisors (see below), whose sum is σ = 9219321381888. Its totient is φ = 2850253401600.

The previous prime is 5551520212153. The next prime is 5551520212163. The reversal of 5551520212155 is 5512120251555.

It is not a de Polignac number, because 5551520212155 - 2¹ = 5551520212153 is a prime.

It is not an unprimeable number, because it can be changed into a prime (5551520212153) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 81077364 + ... + 81145806.

It is an arithmetic number, because the mean of its divisors is an integer number (144051896592).

Almost surely, 2^{5551520212155} is an apocalyptic number.

5551520212155 is a deficient number, since it is larger than the sum of its proper divisors (3667801169733).

5551520212155 is a wasteful number, since it uses less digits than its factorization.

5551520212155 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 70036.

The product of its (nonzero) digits is 125000, while the sum is 39.

It can be divided in two parts, 5551520 and 212155, that added together give a palindrome (5763675).

The spelling of 5551520212155 in words is "five trillion, five hundred fifty-one billion, five hundred twenty million, two hundred twelve thousand, one hundred fifty-five".