55101001681 has 8 divisors (see below), whose sum is σ = 63646077024. Its totient is φ = 47145241920.

The previous prime is 55101001663. The next prime is 55101001687. The reversal of 55101001681 is 18610010155.

55101001681 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 55101001681 - 2²¹ = 55098904529 is a prime.

It is a super-2 number, since 2×55101001681² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (55101001687) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 147328695 + ... + 147329068.

It is an arithmetic number, because the mean of its divisors is an integer number (7955759628).

Almost surely, 2^55101001681 is an apocalyptic number.

It is an amenable number.

55101001681 is a deficient number, since it is larger than the sum of its proper divisors (8545075343).

55101001681 is a wasteful number, since it uses less digits than its factorization.

55101001681 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 294657791.

The product of its (nonzero) digits is 1200, while the sum is 28.

The spelling of 55101001681 in words is "fifty-five billion, one hundred one million, one thousand, six hundred eighty-one".