19996706770 has 64 divisors (see below), whose sum is σ = 37387598976. Its totient is φ = 7696719360.

The previous prime is 19996706711. The next prime is 19996706771. The reversal of 19996706770 is 7760769991.

It is a junction number, because it is equal to n+sod(n) for n = 19996706699 and 19996706708.

It is not an unprimeable number, because it can be changed into a prime (19996706771) by changing a digit.

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 31 ways as a sum of consecutive naturals, for example, 5231460 + ... + 5235280.

It is an arithmetic number, because the mean of its divisors is an integer number (584181234).

Almost surely, 2^19996706770 is an apocalyptic number.

19996706770 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

19996706770 is a deficient number, since it is larger than the sum of its proper divisors (17390892206).

19996706770 is a wasteful number, since it uses less digits than its factorization.

19996706770 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4075.

The product of its (nonzero) digits is 9001692, while the sum is 61.

The spelling of 19996706770 in words is "nineteen billion, nine hundred ninety-six million, seven hundred six thousand, seven hundred seventy".