20078509360 has 80 divisors (see below), whose sum is σ = 57455447616. Its totient is φ = 6354514944.

The previous prime is 20078509337. The next prime is 20078509391. The reversal of 20078509360 is 6390587002.

It is a tau number, because it is divible by the number of its divisors (80).

It is a Harshad number since it is a multiple of its sum of digits (40).

It is an unprimeable number.

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, 1371739 + ... + 1386298.

Almost surely, 2^20078509360 is an apocalyptic number.

20078509360 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20078509360 is an abundant number, since it is smaller than the sum of its proper divisors (37376938256).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

20078509360 is a wasteful number, since it uses less digits than its factorization.

20078509360 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2758070 (or 2758064 counting only the distinct ones).

The product of its (nonzero) digits is 90720, while the sum is 40.

The spelling of 20078509360 in words is "twenty billion, seventy-eight million, five hundred nine thousand, three hundred sixty".