102016780 has 24 divisors (see below), whose sum is σ = 221623920. Its totient is φ = 39399360.

The previous prime is 102016763. The next prime is 102016787. The reversal of 102016780 is 87610201.

It is not an unprimeable number, because it can be changed into a prime (102016787) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 87366 + ... + 88525.

It is an arithmetic number, because the mean of its divisors is an integer number (9234330).

Almost surely, 2^102016780 is an apocalyptic number.

102016780 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

102016780 is an abundant number, since it is smaller than the sum of its proper divisors (119607140).

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

102016780 is a wasteful number, since it uses less digits than its factorization.

102016780 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 175929 (or 175927 counting only the distinct ones).

The product of its (nonzero) digits is 672, while the sum is 25.

The square root of 102016780 is about 10100.3356379875. The cubic root of 102016780 is about 467.2584928934.

Adding to 102016780 its reverse (87610201), we get a palindrome (189626981).

The spelling of 102016780 in words is "one hundred two million, sixteen thousand, seven hundred eighty".