545156771551 has 6 divisors (see below), whose sum is σ = 634161958800. Its totient is φ = 467277232716.

The previous prime is 545156771531. The next prime is 545156771557. The reversal of 545156771551 is 155177651545.

It is not a de Polignac number, because 545156771551 - 2³⁵ = 510797033183 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 (545156771557) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 5562824151 + ... + 5562824248.

It is an arithmetic number, because the mean of its divisors is an integer number (105693659800).

Almost surely, 2^545156771551 is an apocalyptic number.

545156771551 is a deficient number, since it is larger than the sum of its proper divisors (89005187249).

545156771551 is a wasteful number, since it uses less digits than its factorization.

545156771551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11125648413 (or 11125648406 counting only the distinct ones).

The product of its digits is 3675000, while the sum is 52.

The spelling of 545156771551 in words is "five hundred forty-five billion, one hundred fifty-six million, seven hundred seventy-one thousand, five hundred fifty-one".