106421156546 has 4 divisors (see below), whose sum is σ = 159631734822. Its totient is φ = 53210578272.

The previous prime is 106421156539. The next prime is 106421156549. The reversal of 106421156546 is 645651124601.

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., 96413355025 + 10007801521 = 310505^2 + 100039^2 .

It is a super-2 number, since 2×106421156546² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (106421156549) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 26605289135 + ... + 26605289138.

Almost surely, 2^106421156546 is an apocalyptic number.

106421156546 is a deficient number, since it is larger than the sum of its proper divisors (53210578276).

106421156546 is an equidigital number, since it uses as much as digits as its factorization.

106421156546 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53210578275.

The product of its (nonzero) digits is 172800, while the sum is 41.

The spelling of 106421156546 in words is "one hundred six billion, four hundred twenty-one million, one hundred fifty-six thousand, five hundred forty-six".