101010506005551 has 4 divisors (see below), whose sum is σ = 134680674674072. Its totient is φ = 67340337337032.

The previous prime is 101010506005543. The next prime is 101010506005561. The reversal of 101010506005551 is 155500605010101.

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

It is not a de Polignac number, because 101010506005551 - 2³ = 101010506005543 is a prime.

It is a super-3 number, since 3×101010506005551³ (a number of 43 digits) contains 333 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101010506005561) 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, 16835084334256 + ... + 16835084334261.

It is an arithmetic number, because the mean of its divisors is an integer number (33670168668518).

Almost surely, 2^{101010506005551} is an apocalyptic number.

101010506005551 is a deficient number, since it is larger than the sum of its proper divisors (33670168668521).

101010506005551 is an equidigital number, since it uses as much as digits as its factorization.

101010506005551 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33670168668520.

The product of its (nonzero) digits is 3750, while the sum is 30.

The spelling of 101010506005551 in words is "one hundred one trillion, ten billion, five hundred six million, five thousand, five hundred fifty-one".