19916152051 has 8 divisors (see below), whose sum is σ = 21019115520. Its totient is φ = 18818663112.

The previous prime is 19916152043. The next prime is 19916152093. The reversal of 19916152051 is 15025161991.

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 19916152051 - 2³ = 19916152043 is a prime.

It is a super-2 number, since 2×19916152051² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 19916151995 and 19916152013.

It is not an unprimeable number, because it can be changed into a prime (19916152031) 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, 1361155 + ... + 1375708.

It is an arithmetic number, because the mean of its divisors is an integer number (2627389440).

Almost surely, 2^19916152051 is an apocalyptic number.

19916152051 is a deficient number, since it is larger than the sum of its proper divisors (1102963469).

19916152051 is a wasteful number, since it uses less digits than its factorization.

19916152051 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2737265.

The product of its (nonzero) digits is 24300, while the sum is 40.

The spelling of 19916152051 in words is "nineteen billion, nine hundred sixteen million, one hundred fifty-two thousand, fifty-one".