67554972106 has 4 divisors (see below), whose sum is σ = 101332458162. Its totient is φ = 33777486052.

The previous prime is 67554972103. The next prime is 67554972143. The reversal of 67554972106 is 60127945576.

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., 59046570025 + 8508402081 = 242995^2 + 92241^2 .

It is not an unprimeable number, because it can be changed into a prime (67554972103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16888743025 + ... + 16888743028.

Almost surely, 2^67554972106 is an apocalyptic number.

67554972106 is a deficient number, since it is larger than the sum of its proper divisors (33777486056).

67554972106 is a wasteful number, since it uses less digits than its factorization.

67554972106 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 33777486055.

The product of its (nonzero) digits is 3175200, while the sum is 52.

The spelling of 67554972106 in words is "sixty-seven billion, five hundred fifty-four million, nine hundred seventy-two thousand, one hundred six".