15691955054 has 8 divisors (see below), whose sum is σ = 23558036808. Its totient is φ = 7839276120.

The previous prime is 15691954933. The next prime is 15691955093. The reversal of 15691955054 is 45055919651.

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

It is a super-2 number, since 2×15691955054² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 15691954993 and 15691955011.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3347777 + ... + 3352460.

It is an arithmetic number, because the mean of its divisors is an integer number (2944754601).

Almost surely, 2^15691955054 is an apocalyptic number.

15691955054 is a deficient number, since it is larger than the sum of its proper divisors (7866081754).

15691955054 is a wasteful number, since it uses less digits than its factorization.

15691955054 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6701410.

The product of its (nonzero) digits is 1215000, while the sum is 50.

The spelling of 15691955054 in words is "fifteen billion, six hundred ninety-one million, nine hundred fifty-five thousand, fifty-four".