75221473247146 has 16 divisors (see below), whose sum is σ = 117001550887200. Its totient is φ = 36227146843888.

The previous prime is 75221473247101. The next prime is 75221473247191. The reversal of 75221473247146 is 64174237412257.

It is an interprime number because it is at equal distance from previous prime (75221473247101) and next prime (75221473247191).

It is a super-2 number, since 2×75221473247146² (a number of 29 digits) contains 22 as substring.

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, 1547615260 + ... + 1547663863.

It is an arithmetic number, because the mean of its divisors is an integer number (7312596930450).

Almost surely, 2^{75221473247146} is an apocalyptic number.

75221473247146 is a deficient number, since it is larger than the sum of its proper divisors (41780077640054).

75221473247146 is a wasteful number, since it uses less digits than its factorization.

75221473247146 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3095279573.

The product of its digits is 15805440, while the sum is 55.

The spelling of 75221473247146 in words is "seventy-five trillion, two hundred twenty-one billion, four hundred seventy-three million, two hundred forty-seven thousand, one hundred forty-six".