123355666460 has 48 divisors (see below), whose sum is σ = 279053341056. Its totient is φ = 45533686272.

The previous prime is 123355666453. The next prime is 123355666487. The reversal of 123355666460 is 64666553321.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 868157 + ... + 1000203.

It is an arithmetic number, because the mean of its divisors is an integer number (5813611272).

Almost surely, 2^123355666460 is an apocalyptic number.

123355666460 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

123355666460 is an abundant number, since it is smaller than the sum of its proper divisors (155697674596).

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

123355666460 is a wasteful number, since it uses less digits than its factorization.

123355666460 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 135662 (or 135660 counting only the distinct ones).

The product of its (nonzero) digits is 2332800, while the sum is 47.

The spelling of 123355666460 in words is "one hundred twenty-three billion, three hundred fifty-five million, six hundred sixty-six thousand, four hundred sixty".