103656421044 has 288 divisors, whose sum is σ = 307144970496. Its totient is φ = 29128458240.

The previous prime is 103656421013. The next prime is 103656421073. The reversal of 103656421044 is 440124656301.

103656421044 is a `hidden beast` number, since 1 + 0 + 3 + 6 + 5 + 642 + 1 + 0 + 4 + 4 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 154021092 + ... + 154021764.

It is an arithmetic number, because the mean of its divisors is an integer number (1066475592).

Almost surely, 2^103656421044 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103656421044, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (153572485248).

103656421044 is an abundant number, since it is smaller than the sum of its proper divisors (203488549452).

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

103656421044 is a wasteful number, since it uses less digits than its factorization.

103656421044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1015 (or 1010 counting only the distinct ones).

The product of its (nonzero) digits is 69120, while the sum is 36.

The spelling of 103656421044 in words is "one hundred three billion, six hundred fifty-six million, four hundred twenty-one thousand, forty-four".