258223111078 has 16 divisors (see below), whose sum is σ = 404978870016. Its totient is φ = 123252475720.

The previous prime is 258223111067. The next prime is 258223111093. The reversal of 258223111078 is 870111322852.

It is a happy number.

It is a super-2 number, since 2×258223111078² (a number of 24 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 258223111078.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5556928 + ... + 5603203.

It is an arithmetic number, because the mean of its divisors is an integer number (25311179376).

Almost surely, 2^258223111078 is an apocalyptic number.

258223111078 is a deficient number, since it is larger than the sum of its proper divisors (146755758938).

258223111078 is a wasteful number, since it uses less digits than its factorization.

258223111078 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11160659.

The product of its (nonzero) digits is 53760, while the sum is 40.

The spelling of 258223111078 in words is "two hundred fifty-eight billion, two hundred twenty-three million, one hundred eleven thousand, seventy-eight".