10778155650 has 336 divisors, whose sum is σ = 32202403200. Its totient is φ = 2674788480.

The previous prime is 10778155643. The next prime is 10778155673. The reversal of 10778155650 is 5655187701.

10778155650 is a `hidden beast` number, since 1 + 0 + 7 + 7 + 81 + 5 + 565 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a junction number, because it is equal to n+sod(n) for n = 10778155596 and 10778155605.

It is an unprimeable number.

It is a polite number, since it can be written in 167 ways as a sum of consecutive naturals, for example, 54711352 + ... + 54711548.

Almost surely, 2^10778155650 is an apocalyptic number.

10778155650 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 10778155650, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (16101201600).

10778155650 is an abundant number, since it is smaller than the sum of its proper divisors (21424247550).

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

10778155650 is a wasteful number, since it uses less digits than its factorization.

10778155650 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 325 (or 305 counting only the distinct ones).

The product of its (nonzero) digits is 294000, while the sum is 45.

The spelling of 10778155650 in words is "ten billion, seven hundred seventy-eight million, one hundred fifty-five thousand, six hundred fifty".