228157236459960 has 64 divisors (see below), whose sum is σ = 684472733412480. Its totient is φ = 60841838697600.

The previous prime is 228157236459751. The next prime is 228157236460003. The reversal of 228157236459960 is 69954632751822.

It is a super-2 number, since 2×228157236459960² (a number of 30 digits) contains 22 as substring.

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, 127952679 + ... + 129723561.

It is an arithmetic number, because the mean of its divisors is an integer number (10694886459570).

It is a 1-persistent number, because it is pandigital, but 2⋅228157236459960 = 456314472919920 is not.

Almost surely, 2^{228157236459960} is an apocalyptic number.

228157236459960 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

228157236459960 is an abundant number, since it is smaller than the sum of its proper divisors (456315496952520).

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

228157236459960 is a wasteful number, since it uses less digits than its factorization.

228157236459960 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2844548 (or 2844544 counting only the distinct ones).

The product of its (nonzero) digits is 391910400, while the sum is 69.

The spelling of 228157236459960 in words is "two hundred twenty-eight trillion, one hundred fifty-seven billion, two hundred thirty-six million, four hundred fifty-nine thousand, nine hundred sixty".