93661001855 has 4 divisors (see below), whose sum is σ = 112393202232. Its totient is φ = 74928801480.

The previous prime is 93661001803. The next prime is 93661001869. The reversal of 93661001855 is 55810016639.

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

It is not a de Polignac number, because 93661001855 - 2¹⁴ = 93660985471 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9366100181 + ... + 9366100190.

It is an arithmetic number, because the mean of its divisors is an integer number (28098300558).

Almost surely, 2^93661001855 is an apocalyptic number.

93661001855 is a deficient number, since it is larger than the sum of its proper divisors (18732200377).

93661001855 is a wasteful number, since it uses less digits than its factorization.

93661001855 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18732200376.

The product of its (nonzero) digits is 194400, while the sum is 44.

The spelling of 93661001855 in words is "ninety-three billion, six hundred sixty-one million, one thousand, eight hundred fifty-five".