21346112156460 has 192 divisors, whose sum is σ = 74767921880064. Its totient is φ = 4429962316800.

The previous prime is 21346112156443. The next prime is 21346112156483. The reversal of 21346112156460 is 6465121164312.

It is a Harshad number since it is a multiple of its sum of digits (42).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 31712386 + ... + 32378505.

It is an arithmetic number, because the mean of its divisors is an integer number (389416259792).

Almost surely, 2^{21346112156460} is an apocalyptic number.

21346112156460 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21346112156460 is an abundant number, since it is smaller than the sum of its proper divisors (53421809723604).

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

21346112156460 is a wasteful number, since it uses less digits than its factorization.

21346112156460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64090984 (or 64090982 counting only the distinct ones).

The product of its (nonzero) digits is 207360, while the sum is 42.

The spelling of 21346112156460 in words is "twenty-one trillion, three hundred forty-six billion, one hundred twelve million, one hundred fifty-six thousand, four hundred sixty".