20195076377 has 16 divisors (see below), whose sum is σ = 24643660800. Its totient is φ = 16172391312.

The previous prime is 20195076361. The next prime is 20195076389. The reversal of 20195076377 is 77367059102.

It is not a de Polignac number, because 20195076377 - 2⁴ = 20195076361 is a prime.

It is a super-2 number, since 2×20195076377² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20195076337) 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 15 ways as a sum of consecutive naturals, for example, 1451627 + ... + 1465472.

It is an arithmetic number, because the mean of its divisors is an integer number (1540228800).

Almost surely, 2^20195076377 is an apocalyptic number.

It is an amenable number.

20195076377 is a deficient number, since it is larger than the sum of its proper divisors (4448584423).

20195076377 is a wasteful number, since it uses less digits than its factorization.

20195076377 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2917172.

The product of its (nonzero) digits is 555660, while the sum is 47.

The spelling of 20195076377 in words is "twenty billion, one hundred ninety-five million, seventy-six thousand, three hundred seventy-seven".