102061414778 has 16 divisors (see below), whose sum is σ = 162106715880. Its totient is φ = 48026182656.

The previous prime is 102061414751. The next prime is 102061414781. The reversal of 102061414778 is 877414160201.

It can be written as a sum of positive squares in 4 ways, for example, as 97779413809 + 4282000969 = 312697^2 + 65437^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 606050 + ... + 755922.

Almost surely, 2^102061414778 is an apocalyptic number.

102061414778 is a deficient number, since it is larger than the sum of its proper divisors (60045301102).

102061414778 is a wasteful number, since it uses less digits than its factorization.

102061414778 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 169921.

The product of its (nonzero) digits is 75264, while the sum is 41.

Adding to 102061414778 its reverse (877414160201), we get a palindrome (979475574979).

The spelling of 102061414778 in words is "one hundred two billion, sixty-one million, four hundred fourteen thousand, seven hundred seventy-eight".