7145221576 has 16 divisors (see below), whose sum is σ = 13398192000. Its totient is φ = 3572370384.

The previous prime is 7145221547. The next prime is 7145221583. The reversal of 7145221576 is 6751225417.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 198625 + ... + 231823.

It is an arithmetic number, because the mean of its divisors is an integer number (837387000).

Almost surely, 2^7145221576 is an apocalyptic number.

It is an amenable number.

7145221576 is a deficient number, since it is larger than the sum of its proper divisors (6252970424).

7145221576 is a wasteful number, since it uses less digits than its factorization.

7145221576 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60108 (or 60104 counting only the distinct ones).

The product of its digits is 117600, while the sum is 40.

The square root of 7145221576 is about 84529.4124905645. The cubic root of 7145221576 is about 1926.0692615598.

The spelling of 7145221576 in words is "seven billion, one hundred forty-five million, two hundred twenty-one thousand, five hundred seventy-six".