220987149626 has 4 divisors (see below), whose sum is σ = 331480724442. Its totient is φ = 110493574812.

The previous prime is 220987149619. The next prime is 220987149637. The reversal of 220987149626 is 626941789022.

It is a happy number.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in only one way, i.e., 186835740025 + 34151409601 = 432245^2 + 184801^2 .

It is a super-2 number, since 2×220987149626² (a number of 23 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 55246787405 + ... + 55246787408.

Almost surely, 2^220987149626 is an apocalyptic number.

220987149626 is a deficient number, since it is larger than the sum of its proper divisors (110493574816).

220987149626 is a wasteful number, since it uses less digits than its factorization.

220987149626 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 110493574815.

The product of its (nonzero) digits is 5225472, while the sum is 56.

The spelling of 220987149626 in words is "two hundred twenty billion, nine hundred eighty-seven million, one hundred forty-nine thousand, six hundred twenty-six".