53780103661 has 8 divisors (see below), whose sum is σ = 54804522240. Its totient is φ = 52756044432.

The previous prime is 53780103659. The next prime is 53780103701. The reversal of 53780103661 is 16630108735.

It is a happy number.

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 53780103661 - 2¹ = 53780103659 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 (53780103361) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 222576 + ... + 396358.

It is an arithmetic number, because the mean of its divisors is an integer number (6850565280).

Almost surely, 2^53780103661 is an apocalyptic number.

It is an amenable number.

53780103661 is a deficient number, since it is larger than the sum of its proper divisors (1024418579).

53780103661 is a wasteful number, since it uses less digits than its factorization.

53780103661 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179675.

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 53780103661 in words is "fifty-three billion, seven hundred eighty million, one hundred three thousand, six hundred sixty-one".