5501468777781 has 32 divisors (see below), whose sum is σ = 7609362647040. Its totient is φ = 3532970818944.

The previous prime is 5501468777741. The next prime is 5501468777807. The reversal of 5501468777781 is 1877778641055.

It is not a de Polignac number, because 5501468777781 - 2³³ = 5492878843189 is a prime.

It is a super-2 number, since 2×5501468777781² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (5501468777741) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 164959750 + ... + 164993096.

It is an arithmetic number, because the mean of its divisors is an integer number (237792582720).

Almost surely, 2^{5501468777781} is an apocalyptic number.

It is an amenable number.

5501468777781 is a deficient number, since it is larger than the sum of its proper divisors (2107893869259).

5501468777781 is a wasteful number, since it uses less digits than its factorization.

5501468777781 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50985.

The product of its (nonzero) digits is 92198400, while the sum is 66.

The spelling of 5501468777781 in words is "five trillion, five hundred one billion, four hundred sixty-eight million, seven hundred seventy-seven thousand, seven hundred eighty-one".