2238078357656 has 32 divisors (see below), whose sum is σ = 4305901103280. Its totient is φ = 1089928896000.

The previous prime is 2238078357631. The next prime is 2238078357659. The reversal of 2238078357656 is 6567538708322.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2238078357659) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5479586 + ... + 5873841.

Almost surely, 2^{2238078357656} is an apocalyptic number.

It is an amenable number.

2238078357656 is a deficient number, since it is larger than the sum of its proper divisors (2067822745624).

2238078357656 is a wasteful number, since it uses less digits than its factorization.

2238078357656 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11354075 (or 11354071 counting only the distinct ones).

The product of its (nonzero) digits is 101606400, while the sum is 62.

The spelling of 2238078357656 in words is "two trillion, two hundred thirty-eight billion, seventy-eight million, three hundred fifty-seven thousand, six hundred fifty-six".